18431920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{479}}^1$

素因数の和:542

約数の個数: 80

約数和(自身を含む): 47496960

約数和(自身を除く): 29065040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 104, 130, 148, 185, 208, 260, 296, 370, 479, 481, 520, 592, 740, 958, 962, 1040, 1480, 1916, 1924, 2395, 2405, 2960, 3832, 3848, 4790, 4810, 6227, 7664, 7696, 9580, 9620, 12454, 17723, 19160, 19240, 24908, 31135, 35446, 38320, 38480, 49816, 62270, 70892, 88615, 99632, 124540, 141784, 177230, 230399, 249080, 283568, 354460, 460798, 498160, 708920, 921596, 1151995, 1417840, 1843192, 2303990, 3686384, 4607980, 9215960, 18431920]

約数ペア:

[(1, 18431920), (2, 9215960), (4, 4607980), (5, 3686384), (8, 2303990), (10, 1843192), (13, 1417840), (16, 1151995), (20, 921596), (26, 708920), (37, 498160), (40, 460798), (52, 354460), (65, 283568), (74, 249080), (80, 230399), (104, 177230), (130, 141784), (148, 124540), (185, 99632), (208, 88615), (260, 70892), (296, 62270), (370, 49816), (479, 38480), (481, 38320), (520, 35446), (592, 31135), (740, 24908), (958, 19240), (962, 19160), (1040, 17723), (1480, 12454), (1916, 9620), (1924, 9580), (2395, 7696), (2405, 7664), (2960, 6227), (3832, 4810), (3848, 4790)]