128518520

素因数分解:

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

素因数の和:213

約数の個数: 96

約数和(自身を含む): 321239520

約数和(自身を除く): 192721000

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, 3481, 3692, 3835, 4189, 4615, 6136, 6962, 7384, 7670, 8378, 9230, 13924, 15340, 16756, 17405, 18460, 20945, 27848, 30680, 33512, 34810, 36920, 41890, 45253, 54457, 69620, 83780, 90506, 108914, 139240, 167560, 181012, 217828, 226265, 247151, 272285, 362024, 435656, 452530, 494302, 544570, 905060, 988604, 1089140, 1235755, 1810120, 1977208, 2178280, 2471510, 3212963, 4943020, 6425926, 9886040, 12851852, 16064815, 25703704, 32129630, 64259260, 128518520]

約数ペア:

[(1, 128518520), (2, 64259260), (4, 32129630), (5, 25703704), (8, 16064815), (10, 12851852), (13, 9886040), (20, 6425926), (26, 4943020), (40, 3212963), (52, 2471510), (59, 2178280), (65, 1977208), (71, 1810120), (104, 1235755), (118, 1089140), (130, 988604), (142, 905060), (236, 544570), (260, 494302), (284, 452530), (295, 435656), (355, 362024), (472, 272285), (520, 247151), (568, 226265), (590, 217828), (710, 181012), (767, 167560), (923, 139240), (1180, 108914), (1420, 90506), (1534, 83780), (1846, 69620), (2360, 54457), (2840, 45253), (3068, 41890), (3481, 36920), (3692, 34810), (3835, 33512), (4189, 30680), (4615, 27848), (6136, 20945), (6962, 18460), (7384, 17405), (7670, 16756), (8378, 15340), (9230, 13924)]