2178280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 5443200

約数和(自身を除く): 3264920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 59, 65, 71, 104, 118, 130, 142, 236, 260, 284, 295, 355, 472, 520, 568, 590, 710, 767, 923, 1180, 1420, 1534, 1846, 2360, 2840, 3068, 3692, 3835, 4189, 4615, 6136, 7384, 7670, 8378, 9230, 15340, 16756, 18460, 20945, 30680, 33512, 36920, 41890, 54457, 83780, 108914, 167560, 217828, 272285, 435656, 544570, 1089140, 2178280]

約数ペア:

[(1, 2178280), (2, 1089140), (4, 544570), (5, 435656), (8, 272285), (10, 217828), (13, 167560), (20, 108914), (26, 83780), (40, 54457), (52, 41890), (59, 36920), (65, 33512), (71, 30680), (104, 20945), (118, 18460), (130, 16756), (142, 15340), (236, 9230), (260, 8378), (284, 7670), (295, 7384), (355, 6136), (472, 4615), (520, 4189), (568, 3835), (590, 3692), (710, 3068), (767, 2840), (923, 2360), (1180, 1846), (1420, 1534)]