18817195280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1064321}}^1$

素因数の和:1064364

約数の個数: 80

約数和(自身を含む): 49886900784

約数和(自身を除く): 31069705504

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 2210, 3536, 4420, 8840, 17680, 1064321, 2128642, 4257284, 5321605, 8514568, 10643210, 13836173, 17029136, 18093457, 21286420, 27672346, 36186914, 42572840, 55344692, 69180865, 72373828, 85145680, 90467285, 110689384, 138361730, 144747656, 180934570, 221378768, 235214941, 276723460, 289495312, 361869140, 470429882, 553446920, 723738280, 940859764, 1106893840, 1176074705, 1447476560, 1881719528, 2352149410, 3763439056, 4704298820, 9408597640, 18817195280]

約数ペア:

[(1, 18817195280), (2, 9408597640), (4, 4704298820), (5, 3763439056), (8, 2352149410), (10, 1881719528), (13, 1447476560), (16, 1176074705), (17, 1106893840), (20, 940859764), (26, 723738280), (34, 553446920), (40, 470429882), (52, 361869140), (65, 289495312), (68, 276723460), (80, 235214941), (85, 221378768), (104, 180934570), (130, 144747656), (136, 138361730), (170, 110689384), (208, 90467285), (221, 85145680), (260, 72373828), (272, 69180865), (340, 55344692), (442, 42572840), (520, 36186914), (680, 27672346), (884, 21286420), (1040, 18093457), (1105, 17029136), (1360, 13836173), (1768, 10643210), (2210, 8514568), (3536, 5321605), (4420, 4257284), (8840, 2128642), (17680, 1064321)]