78395900

素因数分解:

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

素因数の和:97

約数の個数: 144

約数和(自身を含む): 203320320

約数和(自身を除く): 124924420

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 31, 38, 44, 50, 55, 62, 76, 95, 100, 110, 121, 124, 155, 190, 209, 220, 242, 275, 310, 341, 380, 418, 475, 484, 550, 589, 605, 620, 682, 775, 836, 950, 1045, 1100, 1178, 1210, 1331, 1364, 1550, 1705, 1900, 2090, 2299, 2356, 2420, 2662, 2945, 3025, 3100, 3410, 3751, 4180, 4598, 5225, 5324, 5890, 6050, 6479, 6655, 6820, 7502, 8525, 9196, 10450, 11495, 11780, 12100, 12958, 13310, 14725, 15004, 17050, 18755, 20900, 22990, 25289, 25916, 26620, 29450, 32395, 33275, 34100, 37510, 41261, 45980, 50578, 57475, 58900, 64790, 66550, 71269, 75020, 82522, 93775, 101156, 114950, 126445, 129580, 133100, 142538, 161975, 165044, 187550, 206305, 229900, 252890, 285076, 323950, 356345, 375100, 412610, 505780, 632225, 647900, 712690, 783959, 825220, 1031525, 1264450, 1425380, 1567918, 1781725, 2063050, 2528900, 3135836, 3563450, 3919795, 4126100, 7126900, 7839590, 15679180, 19598975, 39197950, 78395900]

約数ペア:

[(1, 78395900), (2, 39197950), (4, 19598975), (5, 15679180), (10, 7839590), (11, 7126900), (19, 4126100), (20, 3919795), (22, 3563450), (25, 3135836), (31, 2528900), (38, 2063050), (44, 1781725), (50, 1567918), (55, 1425380), (62, 1264450), (76, 1031525), (95, 825220), (100, 783959), (110, 712690), (121, 647900), (124, 632225), (155, 505780), (190, 412610), (209, 375100), (220, 356345), (242, 323950), (275, 285076), (310, 252890), (341, 229900), (380, 206305), (418, 187550), (475, 165044), (484, 161975), (550, 142538), (589, 133100), (605, 129580), (620, 126445), (682, 114950), (775, 101156), (836, 93775), (950, 82522), (1045, 75020), (1100, 71269), (1178, 66550), (1210, 64790), (1331, 58900), (1364, 57475), (1550, 50578), (1705, 45980), (1900, 41261), (2090, 37510), (2299, 34100), (2356, 33275), (2420, 32395), (2662, 29450), (2945, 26620), (3025, 25916), (3100, 25289), (3410, 22990), (3751, 20900), (4180, 18755), (4598, 17050), (5225, 15004), (5324, 14725), (5890, 13310), (6050, 12958), (6479, 12100), (6655, 11780), (6820, 11495), (7502, 10450), (8525, 9196)]