30911720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2083}}^1$

素因数の和:2154

約数の個数: 64

約数和(自身を含む): 81025920

約数和(自身を除く): 50114200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 530, 742, 1060, 1484, 1855, 2083, 2120, 2968, 3710, 4166, 7420, 8332, 10415, 14581, 14840, 16664, 20830, 29162, 41660, 58324, 72905, 83320, 110399, 116648, 145810, 220798, 291620, 441596, 551995, 583240, 772793, 883192, 1103990, 1545586, 2207980, 3091172, 3863965, 4415960, 6182344, 7727930, 15455860, 30911720]

約数ペア:

[(1, 30911720), (2, 15455860), (4, 7727930), (5, 6182344), (7, 4415960), (8, 3863965), (10, 3091172), (14, 2207980), (20, 1545586), (28, 1103990), (35, 883192), (40, 772793), (53, 583240), (56, 551995), (70, 441596), (106, 291620), (140, 220798), (212, 145810), (265, 116648), (280, 110399), (371, 83320), (424, 72905), (530, 58324), (742, 41660), (1060, 29162), (1484, 20830), (1855, 16664), (2083, 14840), (2120, 14581), (2968, 10415), (3710, 8332), (4166, 7420)]