28312960

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:156

約数の個数: 128

約数和(自身を含む): 75569760

約数和(自身を除く): 47256800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 41, 52, 64, 65, 80, 82, 83, 104, 128, 130, 160, 164, 166, 205, 208, 260, 320, 328, 332, 410, 415, 416, 520, 533, 640, 656, 664, 820, 830, 832, 1040, 1066, 1079, 1312, 1328, 1640, 1660, 1664, 2080, 2132, 2158, 2624, 2656, 2665, 3280, 3320, 3403, 4160, 4264, 4316, 5248, 5312, 5330, 5395, 6560, 6640, 6806, 8320, 8528, 8632, 10624, 10660, 10790, 13120, 13280, 13612, 17015, 17056, 17264, 21320, 21580, 26240, 26560, 27224, 34030, 34112, 34528, 42640, 43160, 44239, 53120, 54448, 68060, 68224, 69056, 85280, 86320, 88478, 108896, 136120, 138112, 170560, 172640, 176956, 217792, 221195, 272240, 341120, 345280, 353912, 435584, 442390, 544480, 690560, 707824, 884780, 1088960, 1415648, 1769560, 2177920, 2831296, 3539120, 5662592, 7078240, 14156480, 28312960]

約数ペア:

[(1, 28312960), (2, 14156480), (4, 7078240), (5, 5662592), (8, 3539120), (10, 2831296), (13, 2177920), (16, 1769560), (20, 1415648), (26, 1088960), (32, 884780), (40, 707824), (41, 690560), (52, 544480), (64, 442390), (65, 435584), (80, 353912), (82, 345280), (83, 341120), (104, 272240), (128, 221195), (130, 217792), (160, 176956), (164, 172640), (166, 170560), (205, 138112), (208, 136120), (260, 108896), (320, 88478), (328, 86320), (332, 85280), (410, 69056), (415, 68224), (416, 68060), (520, 54448), (533, 53120), (640, 44239), (656, 43160), (664, 42640), (820, 34528), (830, 34112), (832, 34030), (1040, 27224), (1066, 26560), (1079, 26240), (1312, 21580), (1328, 21320), (1640, 17264), (1660, 17056), (1664, 17015), (2080, 13612), (2132, 13280), (2158, 13120), (2624, 10790), (2656, 10660), (2665, 10624), (3280, 8632), (3320, 8528), (3403, 8320), (4160, 6806), (4264, 6640), (4316, 6560), (5248, 5395), (5312, 5330)]