64201000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:180

約数の個数: 128

約数和(自身を含む): 164736000

約数和(自身を除く): 100535000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 31, 38, 40, 50, 62, 76, 95, 100, 109, 124, 125, 152, 155, 190, 200, 218, 248, 250, 310, 380, 436, 475, 500, 545, 589, 620, 760, 775, 872, 950, 1000, 1090, 1178, 1240, 1550, 1900, 2071, 2180, 2356, 2375, 2725, 2945, 3100, 3379, 3800, 3875, 4142, 4360, 4712, 4750, 5450, 5890, 6200, 6758, 7750, 8284, 9500, 10355, 10900, 11780, 13516, 13625, 14725, 15500, 16568, 16895, 19000, 20710, 21800, 23560, 27032, 27250, 29450, 31000, 33790, 41420, 51775, 54500, 58900, 64201, 67580, 73625, 82840, 84475, 103550, 109000, 117800, 128402, 135160, 147250, 168950, 207100, 256804, 258875, 294500, 321005, 337900, 414200, 422375, 513608, 517750, 589000, 642010, 675800, 844750, 1035500, 1284020, 1605025, 1689500, 2071000, 2568040, 3210050, 3379000, 6420100, 8025125, 12840200, 16050250, 32100500, 64201000]

約数ペア:

[(1, 64201000), (2, 32100500), (4, 16050250), (5, 12840200), (8, 8025125), (10, 6420100), (19, 3379000), (20, 3210050), (25, 2568040), (31, 2071000), (38, 1689500), (40, 1605025), (50, 1284020), (62, 1035500), (76, 844750), (95, 675800), (100, 642010), (109, 589000), (124, 517750), (125, 513608), (152, 422375), (155, 414200), (190, 337900), (200, 321005), (218, 294500), (248, 258875), (250, 256804), (310, 207100), (380, 168950), (436, 147250), (475, 135160), (500, 128402), (545, 117800), (589, 109000), (620, 103550), (760, 84475), (775, 82840), (872, 73625), (950, 67580), (1000, 64201), (1090, 58900), (1178, 54500), (1240, 51775), (1550, 41420), (1900, 33790), (2071, 31000), (2180, 29450), (2356, 27250), (2375, 27032), (2725, 23560), (2945, 21800), (3100, 20710), (3379, 19000), (3800, 16895), (3875, 16568), (4142, 15500), (4360, 14725), (4712, 13625), (4750, 13516), (5450, 11780), (5890, 10900), (6200, 10355), (6758, 9500), (7750, 8284)]