20126080

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:132

約数の個数: 128

約数和(自身を含む): 53978400

約数和(自身を除く): 33852320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 41, 52, 59, 64, 65, 80, 82, 104, 118, 128, 130, 160, 164, 205, 208, 236, 260, 295, 320, 328, 410, 416, 472, 520, 533, 590, 640, 656, 767, 820, 832, 944, 1040, 1066, 1180, 1312, 1534, 1640, 1664, 1888, 2080, 2132, 2360, 2419, 2624, 2665, 3068, 3280, 3776, 3835, 4160, 4264, 4720, 4838, 5248, 5330, 6136, 6560, 7552, 7670, 8320, 8528, 9440, 9676, 10660, 12095, 12272, 13120, 15340, 17056, 18880, 19352, 21320, 24190, 24544, 26240, 30680, 31447, 34112, 37760, 38704, 42640, 48380, 49088, 61360, 62894, 68224, 77408, 85280, 96760, 98176, 122720, 125788, 154816, 157235, 170560, 193520, 245440, 251576, 309632, 314470, 341120, 387040, 490880, 503152, 628940, 774080, 1006304, 1257880, 1548160, 2012608, 2515760, 4025216, 5031520, 10063040, 20126080]

約数ペア:

[(1, 20126080), (2, 10063040), (4, 5031520), (5, 4025216), (8, 2515760), (10, 2012608), (13, 1548160), (16, 1257880), (20, 1006304), (26, 774080), (32, 628940), (40, 503152), (41, 490880), (52, 387040), (59, 341120), (64, 314470), (65, 309632), (80, 251576), (82, 245440), (104, 193520), (118, 170560), (128, 157235), (130, 154816), (160, 125788), (164, 122720), (205, 98176), (208, 96760), (236, 85280), (260, 77408), (295, 68224), (320, 62894), (328, 61360), (410, 49088), (416, 48380), (472, 42640), (520, 38704), (533, 37760), (590, 34112), (640, 31447), (656, 30680), (767, 26240), (820, 24544), (832, 24190), (944, 21320), (1040, 19352), (1066, 18880), (1180, 17056), (1312, 15340), (1534, 13120), (1640, 12272), (1664, 12095), (1888, 10660), (2080, 9676), (2132, 9440), (2360, 8528), (2419, 8320), (2624, 7670), (2665, 7552), (3068, 6560), (3280, 6136), (3776, 5330), (3835, 5248), (4160, 4838), (4264, 4720)]