389938120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{68171}}^1$

素因数の和:68206

約数の個数: 64

約数和(自身を含む): 1030760640

約数和(自身を除く): 640822520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 5720, 68171, 136342, 272684, 340855, 545368, 681710, 749881, 886223, 1363420, 1499762, 1772446, 2726840, 2999524, 3544892, 3749405, 4431115, 5999048, 7089784, 7498810, 8862230, 9748453, 14997620, 17724460, 19496906, 29995240, 35448920, 38993812, 48742265, 77987624, 97484530, 194969060, 389938120]

約数ペア:

[(1, 389938120), (2, 194969060), (4, 97484530), (5, 77987624), (8, 48742265), (10, 38993812), (11, 35448920), (13, 29995240), (20, 19496906), (22, 17724460), (26, 14997620), (40, 9748453), (44, 8862230), (52, 7498810), (55, 7089784), (65, 5999048), (88, 4431115), (104, 3749405), (110, 3544892), (130, 2999524), (143, 2726840), (220, 1772446), (260, 1499762), (286, 1363420), (440, 886223), (520, 749881), (572, 681710), (715, 545368), (1144, 340855), (1430, 272684), (2860, 136342), (5720, 68171)]