18384400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:137

約数の個数: 120

約数和(自身を含む): 48434400

約数和(自身を除く): 30050000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 41, 50, 59, 76, 80, 82, 95, 100, 118, 152, 164, 190, 200, 205, 236, 295, 304, 328, 380, 400, 410, 472, 475, 590, 656, 760, 779, 820, 944, 950, 1025, 1121, 1180, 1475, 1520, 1558, 1640, 1900, 2050, 2242, 2360, 2419, 2950, 3116, 3280, 3800, 3895, 4100, 4484, 4720, 4838, 5605, 5900, 6232, 7600, 7790, 8200, 8968, 9676, 11210, 11800, 12095, 12464, 15580, 16400, 17936, 19352, 19475, 22420, 23600, 24190, 28025, 31160, 38704, 38950, 44840, 45961, 48380, 56050, 60475, 62320, 77900, 89680, 91922, 96760, 112100, 120950, 155800, 183844, 193520, 224200, 229805, 241900, 311600, 367688, 448400, 459610, 483800, 735376, 919220, 967600, 1149025, 1838440, 2298050, 3676880, 4596100, 9192200, 18384400]

約数ペア:

[(1, 18384400), (2, 9192200), (4, 4596100), (5, 3676880), (8, 2298050), (10, 1838440), (16, 1149025), (19, 967600), (20, 919220), (25, 735376), (38, 483800), (40, 459610), (41, 448400), (50, 367688), (59, 311600), (76, 241900), (80, 229805), (82, 224200), (95, 193520), (100, 183844), (118, 155800), (152, 120950), (164, 112100), (190, 96760), (200, 91922), (205, 89680), (236, 77900), (295, 62320), (304, 60475), (328, 56050), (380, 48380), (400, 45961), (410, 44840), (472, 38950), (475, 38704), (590, 31160), (656, 28025), (760, 24190), (779, 23600), (820, 22420), (944, 19475), (950, 19352), (1025, 17936), (1121, 16400), (1180, 15580), (1475, 12464), (1520, 12095), (1558, 11800), (1640, 11210), (1900, 9676), (2050, 8968), (2242, 8200), (2360, 7790), (2419, 7600), (2950, 6232), (3116, 5900), (3280, 5605), (3800, 4838), (3895, 4720), (4100, 4484)]