404807920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 240

約数和(自身を含む): 1139927040

約数和(自身を除く): 735119120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 31, 38, 40, 44, 55, 62, 71, 76, 80, 88, 95, 110, 121, 124, 142, 152, 155, 176, 190, 209, 220, 242, 248, 284, 304, 310, 341, 355, 380, 418, 440, 484, 496, 568, 589, 605, 620, 682, 710, 760, 781, 836, 880, 968, 1045, 1136, 1178, 1210, 1240, 1349, 1364, 1420, 1520, 1562, 1672, 1705, 1936, 2090, 2201, 2299, 2356, 2420, 2480, 2698, 2728, 2840, 2945, 3124, 3344, 3410, 3751, 3905, 4180, 4402, 4598, 4712, 4840, 5396, 5456, 5680, 5890, 6248, 6479, 6745, 6820, 7502, 7810, 8360, 8591, 8804, 9196, 9424, 9680, 10792, 11005, 11495, 11780, 12496, 12958, 13490, 13640, 14839, 15004, 15620, 16720, 17182, 17608, 18392, 18755, 21584, 22010, 22990, 23560, 24211, 25916, 26980, 27280, 29678, 30008, 31240, 32395, 34364, 35216, 36784, 37510, 41819, 42955, 44020, 45980, 47120, 48422, 51832, 53960, 59356, 60016, 62480, 64790, 68728, 71269, 74195, 75020, 83638, 85910, 88040, 91960, 96844, 103664, 107920, 118712, 121055, 129580, 137456, 142538, 148390, 150040, 163229, 167276, 171820, 176080, 183920, 193688, 209095, 237424, 242110, 259160, 266321, 285076, 296780, 300080, 326458, 334552, 343640, 356345, 387376, 418190, 460009, 484220, 518320, 532642, 570152, 593560, 652916, 669104, 687280, 712690, 816145, 836380, 920018, 968440, 1065284, 1140304, 1187120, 1305832, 1331605, 1425380, 1632290, 1672760, 1840036, 1936880, 2130568, 2300045, 2611664, 2663210, 2850760, 3264580, 3345520, 3680072, 4261136, 4600090, 5060099, 5326420, 5701520, 6529160, 7360144, 9200180, 10120198, 10652840, 13058320, 18400360, 20240396, 21305680, 25300495, 36800720, 40480792, 50600990, 80961584, 101201980, 202403960, 404807920]

約数ペア:

[(1, 404807920), (2, 202403960), (4, 101201980), (5, 80961584), (8, 50600990), (10, 40480792), (11, 36800720), (16, 25300495), (19, 21305680), (20, 20240396), (22, 18400360), (31, 13058320), (38, 10652840), (40, 10120198), (44, 9200180), (55, 7360144), (62, 6529160), (71, 5701520), (76, 5326420), (80, 5060099), (88, 4600090), (95, 4261136), (110, 3680072), (121, 3345520), (124, 3264580), (142, 2850760), (152, 2663210), (155, 2611664), (176, 2300045), (190, 2130568), (209, 1936880), (220, 1840036), (242, 1672760), (248, 1632290), (284, 1425380), (304, 1331605), (310, 1305832), (341, 1187120), (355, 1140304), (380, 1065284), (418, 968440), (440, 920018), (484, 836380), (496, 816145), (568, 712690), (589, 687280), (605, 669104), (620, 652916), (682, 593560), (710, 570152), (760, 532642), (781, 518320), (836, 484220), (880, 460009), (968, 418190), (1045, 387376), (1136, 356345), (1178, 343640), (1210, 334552), (1240, 326458), (1349, 300080), (1364, 296780), (1420, 285076), (1520, 266321), (1562, 259160), (1672, 242110), (1705, 237424), (1936, 209095), (2090, 193688), (2201, 183920), (2299, 176080), (2356, 171820), (2420, 167276), (2480, 163229), (2698, 150040), (2728, 148390), (2840, 142538), (2945, 137456), (3124, 129580), (3344, 121055), (3410, 118712), (3751, 107920), (3905, 103664), (4180, 96844), (4402, 91960), (4598, 88040), (4712, 85910), (4840, 83638), (5396, 75020), (5456, 74195), (5680, 71269), (5890, 68728), (6248, 64790), (6479, 62480), (6745, 60016), (6820, 59356), (7502, 53960), (7810, 51832), (8360, 48422), (8591, 47120), (8804, 45980), (9196, 44020), (9424, 42955), (9680, 41819), (10792, 37510), (11005, 36784), (11495, 35216), (11780, 34364), (12496, 32395), (12958, 31240), (13490, 30008), (13640, 29678), (14839, 27280), (15004, 26980), (15620, 25916), (16720, 24211), (17182, 23560), (17608, 22990), (18392, 22010), (18755, 21584)]