31325680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:626

約数の個数: 80

約数和(自身を含む): 78878880

約数和(自身を除く): 47553200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 37, 38, 40, 74, 76, 80, 95, 148, 152, 185, 190, 296, 304, 370, 380, 557, 592, 703, 740, 760, 1114, 1406, 1480, 1520, 2228, 2785, 2812, 2960, 3515, 4456, 5570, 5624, 7030, 8912, 10583, 11140, 11248, 14060, 20609, 21166, 22280, 28120, 41218, 42332, 44560, 52915, 56240, 82436, 84664, 103045, 105830, 164872, 169328, 206090, 211660, 329744, 391571, 412180, 423320, 783142, 824360, 846640, 1566284, 1648720, 1957855, 3132568, 3915710, 6265136, 7831420, 15662840, 31325680]

約数ペア:

[(1, 31325680), (2, 15662840), (4, 7831420), (5, 6265136), (8, 3915710), (10, 3132568), (16, 1957855), (19, 1648720), (20, 1566284), (37, 846640), (38, 824360), (40, 783142), (74, 423320), (76, 412180), (80, 391571), (95, 329744), (148, 211660), (152, 206090), (185, 169328), (190, 164872), (296, 105830), (304, 103045), (370, 84664), (380, 82436), (557, 56240), (592, 52915), (703, 44560), (740, 42332), (760, 41218), (1114, 28120), (1406, 22280), (1480, 21166), (1520, 20609), (2228, 14060), (2785, 11248), (2812, 11140), (2960, 10583), (3515, 8912), (4456, 7030), (5570, 5624)]