25242880

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:112

約数の個数: 144

約数和(自身を含む): 68506704

約数和(自身を除く): 43263824

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 41, 52, 64, 65, 74, 80, 82, 104, 128, 130, 148, 160, 164, 185, 205, 208, 256, 260, 296, 320, 328, 370, 410, 416, 481, 520, 533, 592, 640, 656, 740, 820, 832, 962, 1040, 1066, 1184, 1280, 1312, 1480, 1517, 1640, 1664, 1924, 2080, 2132, 2368, 2405, 2624, 2665, 2960, 3034, 3280, 3328, 3848, 4160, 4264, 4736, 4810, 5248, 5330, 5920, 6068, 6560, 7585, 7696, 8320, 8528, 9472, 9620, 10496, 10660, 11840, 12136, 13120, 15170, 15392, 16640, 17056, 19240, 19721, 21320, 23680, 24272, 26240, 30340, 30784, 34112, 38480, 39442, 42640, 47360, 48544, 52480, 60680, 61568, 68224, 76960, 78884, 85280, 97088, 98605, 121360, 123136, 136448, 153920, 157768, 170560, 194176, 197210, 242720, 307840, 315536, 341120, 388352, 394420, 485440, 615680, 631072, 682240, 788840, 970880, 1262144, 1577680, 1941760, 2524288, 3155360, 5048576, 6310720, 12621440, 25242880]

約数ペア:

[(1, 25242880), (2, 12621440), (4, 6310720), (5, 5048576), (8, 3155360), (10, 2524288), (13, 1941760), (16, 1577680), (20, 1262144), (26, 970880), (32, 788840), (37, 682240), (40, 631072), (41, 615680), (52, 485440), (64, 394420), (65, 388352), (74, 341120), (80, 315536), (82, 307840), (104, 242720), (128, 197210), (130, 194176), (148, 170560), (160, 157768), (164, 153920), (185, 136448), (205, 123136), (208, 121360), (256, 98605), (260, 97088), (296, 85280), (320, 78884), (328, 76960), (370, 68224), (410, 61568), (416, 60680), (481, 52480), (520, 48544), (533, 47360), (592, 42640), (640, 39442), (656, 38480), (740, 34112), (820, 30784), (832, 30340), (962, 26240), (1040, 24272), (1066, 23680), (1184, 21320), (1280, 19721), (1312, 19240), (1480, 17056), (1517, 16640), (1640, 15392), (1664, 15170), (1924, 13120), (2080, 12136), (2132, 11840), (2368, 10660), (2405, 10496), (2624, 9620), (2665, 9472), (2960, 8528), (3034, 8320), (3280, 7696), (3328, 7585), (3848, 6560), (4160, 6068), (4264, 5920), (4736, 5330), (4810, 5248)]