21146640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:177

約数の個数: 160

約数和(自身を含む): 71352576

約数和(自身を除く): 50205936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 71, 73, 80, 85, 102, 120, 136, 142, 146, 170, 204, 213, 219, 240, 255, 272, 284, 292, 340, 355, 365, 408, 426, 438, 510, 568, 584, 680, 710, 730, 816, 852, 876, 1020, 1065, 1095, 1136, 1168, 1207, 1241, 1360, 1420, 1460, 1704, 1752, 2040, 2130, 2190, 2414, 2482, 2840, 2920, 3408, 3504, 3621, 3723, 4080, 4260, 4380, 4828, 4964, 5183, 5680, 5840, 6035, 6205, 7242, 7446, 8520, 8760, 9656, 9928, 10366, 12070, 12410, 14484, 14892, 15549, 17040, 17520, 18105, 18615, 19312, 19856, 20732, 24140, 24820, 25915, 28968, 29784, 31098, 36210, 37230, 41464, 48280, 49640, 51830, 57936, 59568, 62196, 72420, 74460, 77745, 82928, 88111, 96560, 99280, 103660, 124392, 144840, 148920, 155490, 176222, 207320, 248784, 264333, 289680, 297840, 310980, 352444, 414640, 440555, 528666, 621960, 704888, 881110, 1057332, 1243920, 1321665, 1409776, 1762220, 2114664, 2643330, 3524440, 4229328, 5286660, 7048880, 10573320, 21146640]

約数ペア:

[(1, 21146640), (2, 10573320), (3, 7048880), (4, 5286660), (5, 4229328), (6, 3524440), (8, 2643330), (10, 2114664), (12, 1762220), (15, 1409776), (16, 1321665), (17, 1243920), (20, 1057332), (24, 881110), (30, 704888), (34, 621960), (40, 528666), (48, 440555), (51, 414640), (60, 352444), (68, 310980), (71, 297840), (73, 289680), (80, 264333), (85, 248784), (102, 207320), (120, 176222), (136, 155490), (142, 148920), (146, 144840), (170, 124392), (204, 103660), (213, 99280), (219, 96560), (240, 88111), (255, 82928), (272, 77745), (284, 74460), (292, 72420), (340, 62196), (355, 59568), (365, 57936), (408, 51830), (426, 49640), (438, 48280), (510, 41464), (568, 37230), (584, 36210), (680, 31098), (710, 29784), (730, 28968), (816, 25915), (852, 24820), (876, 24140), (1020, 20732), (1065, 19856), (1095, 19312), (1136, 18615), (1168, 18105), (1207, 17520), (1241, 17040), (1360, 15549), (1420, 14892), (1460, 14484), (1704, 12410), (1752, 12070), (2040, 10366), (2130, 9928), (2190, 9656), (2414, 8760), (2482, 8520), (2840, 7446), (2920, 7242), (3408, 6205), (3504, 6035), (3621, 5840), (3723, 5680), (4080, 5183), (4260, 4964), (4380, 4828)]