39616640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:302

約数の個数: 128

約数和(自身を含む): 111628800

約数和(自身を除く): 72012160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 64, 70, 74, 80, 112, 128, 140, 148, 160, 185, 224, 239, 259, 280, 296, 320, 370, 448, 478, 518, 560, 592, 640, 740, 896, 956, 1036, 1120, 1184, 1195, 1295, 1480, 1673, 1912, 2072, 2240, 2368, 2390, 2590, 2960, 3346, 3824, 4144, 4480, 4736, 4780, 5180, 5920, 6692, 7648, 8288, 8365, 8843, 9560, 10360, 11840, 13384, 15296, 16576, 16730, 17686, 19120, 20720, 23680, 26768, 30592, 33152, 33460, 35372, 38240, 41440, 44215, 53536, 61901, 66920, 70744, 76480, 82880, 88430, 107072, 123802, 133840, 141488, 152960, 165760, 176860, 214144, 247604, 267680, 282976, 309505, 353720, 495208, 535360, 565952, 619010, 707440, 990416, 1070720, 1131904, 1238020, 1414880, 1980832, 2476040, 2829760, 3961664, 4952080, 5659520, 7923328, 9904160, 19808320, 39616640]

約数ペア:

[(1, 39616640), (2, 19808320), (4, 9904160), (5, 7923328), (7, 5659520), (8, 4952080), (10, 3961664), (14, 2829760), (16, 2476040), (20, 1980832), (28, 1414880), (32, 1238020), (35, 1131904), (37, 1070720), (40, 990416), (56, 707440), (64, 619010), (70, 565952), (74, 535360), (80, 495208), (112, 353720), (128, 309505), (140, 282976), (148, 267680), (160, 247604), (185, 214144), (224, 176860), (239, 165760), (259, 152960), (280, 141488), (296, 133840), (320, 123802), (370, 107072), (448, 88430), (478, 82880), (518, 76480), (560, 70744), (592, 66920), (640, 61901), (740, 53536), (896, 44215), (956, 41440), (1036, 38240), (1120, 35372), (1184, 33460), (1195, 33152), (1295, 30592), (1480, 26768), (1673, 23680), (1912, 20720), (2072, 19120), (2240, 17686), (2368, 16730), (2390, 16576), (2590, 15296), (2960, 13384), (3346, 11840), (3824, 10360), (4144, 9560), (4480, 8843), (4736, 8365), (4780, 8288), (5180, 7648), (5920, 6692)]