164536240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1033}}^1$

素因数の和:1238

約数の個数: 80

約数和(自身を含む): 420035616

約数和(自身を除く): 255499376

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 181, 220, 362, 440, 724, 880, 905, 1033, 1448, 1810, 1991, 2066, 2896, 3620, 3982, 4132, 5165, 7240, 7964, 8264, 9955, 10330, 11363, 14480, 15928, 16528, 19910, 20660, 22726, 31856, 39820, 41320, 45452, 56815, 79640, 82640, 90904, 113630, 159280, 181808, 186973, 227260, 373946, 454520, 747892, 909040, 934865, 1495784, 1869730, 2056703, 2991568, 3739460, 4113406, 7478920, 8226812, 10283515, 14957840, 16453624, 20567030, 32907248, 41134060, 82268120, 164536240]

約数ペア:

[(1, 164536240), (2, 82268120), (4, 41134060), (5, 32907248), (8, 20567030), (10, 16453624), (11, 14957840), (16, 10283515), (20, 8226812), (22, 7478920), (40, 4113406), (44, 3739460), (55, 2991568), (80, 2056703), (88, 1869730), (110, 1495784), (176, 934865), (181, 909040), (220, 747892), (362, 454520), (440, 373946), (724, 227260), (880, 186973), (905, 181808), (1033, 159280), (1448, 113630), (1810, 90904), (1991, 82640), (2066, 79640), (2896, 56815), (3620, 45452), (3982, 41320), (4132, 39820), (5165, 31856), (7240, 22726), (7964, 20660), (8264, 19910), (9955, 16528), (10330, 15928), (11363, 14480)]