31487820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:184

約数の個数: 192

約数和(自身を含む): 111390720

約数和(自身を除く): 79902900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 73, 78, 79, 84, 91, 105, 130, 140, 146, 156, 158, 182, 195, 210, 219, 237, 260, 273, 292, 316, 364, 365, 390, 395, 420, 438, 455, 474, 511, 546, 553, 730, 780, 790, 876, 910, 948, 949, 1022, 1027, 1092, 1095, 1106, 1185, 1365, 1460, 1533, 1580, 1659, 1820, 1898, 2044, 2054, 2190, 2212, 2370, 2555, 2730, 2765, 2847, 3066, 3081, 3318, 3796, 4108, 4380, 4740, 4745, 5110, 5135, 5460, 5530, 5694, 5767, 6132, 6162, 6636, 6643, 7189, 7665, 8295, 9490, 10220, 10270, 11060, 11388, 11534, 12324, 13286, 14235, 14378, 15330, 15405, 16590, 17301, 18980, 19929, 20540, 21567, 23068, 26572, 28470, 28756, 28835, 30660, 30810, 33180, 33215, 34602, 35945, 39858, 40369, 43134, 56940, 57670, 61620, 66430, 69204, 71890, 74971, 79716, 80738, 86268, 86505, 99645, 107835, 115340, 121107, 132860, 143780, 149942, 161476, 173010, 199290, 201845, 215670, 224913, 242214, 299884, 346020, 374855, 398580, 403690, 431340, 449826, 484428, 524797, 605535, 749710, 807380, 899652, 1049594, 1124565, 1211070, 1499420, 1574391, 2099188, 2249130, 2422140, 2623985, 3148782, 4498260, 5247970, 6297564, 7871955, 10495940, 15743910, 31487820]

約数ペア:

[(1, 31487820), (2, 15743910), (3, 10495940), (4, 7871955), (5, 6297564), (6, 5247970), (7, 4498260), (10, 3148782), (12, 2623985), (13, 2422140), (14, 2249130), (15, 2099188), (20, 1574391), (21, 1499420), (26, 1211070), (28, 1124565), (30, 1049594), (35, 899652), (39, 807380), (42, 749710), (52, 605535), (60, 524797), (65, 484428), (70, 449826), (73, 431340), (78, 403690), (79, 398580), (84, 374855), (91, 346020), (105, 299884), (130, 242214), (140, 224913), (146, 215670), (156, 201845), (158, 199290), (182, 173010), (195, 161476), (210, 149942), (219, 143780), (237, 132860), (260, 121107), (273, 115340), (292, 107835), (316, 99645), (364, 86505), (365, 86268), (390, 80738), (395, 79716), (420, 74971), (438, 71890), (455, 69204), (474, 66430), (511, 61620), (546, 57670), (553, 56940), (730, 43134), (780, 40369), (790, 39858), (876, 35945), (910, 34602), (948, 33215), (949, 33180), (1022, 30810), (1027, 30660), (1092, 28835), (1095, 28756), (1106, 28470), (1185, 26572), (1365, 23068), (1460, 21567), (1533, 20540), (1580, 19929), (1659, 18980), (1820, 17301), (1898, 16590), (2044, 15405), (2054, 15330), (2190, 14378), (2212, 14235), (2370, 13286), (2555, 12324), (2730, 11534), (2765, 11388), (2847, 11060), (3066, 10270), (3081, 10220), (3318, 9490), (3796, 8295), (4108, 7665), (4380, 7189), (4740, 6643), (4745, 6636), (5110, 6162), (5135, 6132), (5460, 5767), (5530, 5694)]