19955320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 192

約数和(自身を含む): 61286400

約数和(自身を除く): 41331080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 19, 20, 22, 28, 31, 35, 38, 40, 44, 55, 56, 62, 70, 76, 77, 88, 95, 110, 121, 124, 133, 140, 152, 154, 155, 190, 209, 217, 220, 242, 248, 266, 280, 308, 310, 341, 380, 385, 418, 434, 440, 484, 532, 589, 605, 616, 620, 665, 682, 760, 770, 836, 847, 868, 968, 1045, 1064, 1085, 1178, 1210, 1240, 1330, 1364, 1463, 1540, 1672, 1694, 1705, 1736, 2090, 2170, 2299, 2356, 2387, 2420, 2660, 2728, 2926, 2945, 3080, 3388, 3410, 3751, 4123, 4180, 4235, 4340, 4598, 4712, 4774, 4840, 5320, 5852, 5890, 6479, 6776, 6820, 7315, 7502, 8246, 8360, 8470, 8680, 9196, 9548, 11495, 11704, 11780, 11935, 12958, 13640, 14630, 15004, 16093, 16492, 16940, 18392, 18755, 19096, 20615, 22990, 23560, 23870, 25916, 26257, 29260, 30008, 32186, 32395, 32984, 33880, 37510, 41230, 45353, 45980, 47740, 51832, 52514, 58520, 64372, 64790, 71269, 75020, 80465, 82460, 90706, 91960, 95480, 105028, 128744, 129580, 131285, 142538, 150040, 160930, 164920, 181412, 210056, 226765, 259160, 262570, 285076, 321860, 356345, 362824, 453530, 498883, 525140, 570152, 643720, 712690, 907060, 997766, 1050280, 1425380, 1814120, 1995532, 2494415, 2850760, 3991064, 4988830, 9977660, 19955320]

約数ペア:

[(1, 19955320), (2, 9977660), (4, 4988830), (5, 3991064), (7, 2850760), (8, 2494415), (10, 1995532), (11, 1814120), (14, 1425380), (19, 1050280), (20, 997766), (22, 907060), (28, 712690), (31, 643720), (35, 570152), (38, 525140), (40, 498883), (44, 453530), (55, 362824), (56, 356345), (62, 321860), (70, 285076), (76, 262570), (77, 259160), (88, 226765), (95, 210056), (110, 181412), (121, 164920), (124, 160930), (133, 150040), (140, 142538), (152, 131285), (154, 129580), (155, 128744), (190, 105028), (209, 95480), (217, 91960), (220, 90706), (242, 82460), (248, 80465), (266, 75020), (280, 71269), (308, 64790), (310, 64372), (341, 58520), (380, 52514), (385, 51832), (418, 47740), (434, 45980), (440, 45353), (484, 41230), (532, 37510), (589, 33880), (605, 32984), (616, 32395), (620, 32186), (665, 30008), (682, 29260), (760, 26257), (770, 25916), (836, 23870), (847, 23560), (868, 22990), (968, 20615), (1045, 19096), (1064, 18755), (1085, 18392), (1178, 16940), (1210, 16492), (1240, 16093), (1330, 15004), (1364, 14630), (1463, 13640), (1540, 12958), (1672, 11935), (1694, 11780), (1705, 11704), (1736, 11495), (2090, 9548), (2170, 9196), (2299, 8680), (2356, 8470), (2387, 8360), (2420, 8246), (2660, 7502), (2728, 7315), (2926, 6820), (2945, 6776), (3080, 6479), (3388, 5890), (3410, 5852), (3751, 5320), (4123, 4840), (4180, 4774), (4235, 4712), (4340, 4598)]