311913420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8161}}^1$

素因数の和:8200

約数の個数: 144

約数和(自身を含む): 1094230368

約数和(自身を除く): 782316948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 588, 637, 735, 780, 910, 980, 1092, 1274, 1365, 1470, 1820, 1911, 2548, 2730, 2940, 3185, 3822, 5460, 6370, 7644, 8161, 9555, 12740, 16322, 19110, 24483, 32644, 38220, 40805, 48966, 57127, 81610, 97932, 106093, 114254, 122415, 163220, 171381, 212186, 228508, 244830, 285635, 318279, 342762, 399889, 424372, 489660, 530465, 571270, 636558, 685524, 742651, 799778, 856905, 1060930, 1142540, 1199667, 1273116, 1485302, 1591395, 1599556, 1713810, 1999445, 2121860, 2227953, 2399334, 2970604, 3182790, 3427620, 3713255, 3998890, 4455906, 4798668, 5198557, 5998335, 6365580, 7426510, 7997780, 8911812, 10397114, 11139765, 11996670, 14853020, 15595671, 20794228, 22279530, 23993340, 25992785, 31191342, 44559060, 51985570, 62382684, 77978355, 103971140, 155956710, 311913420]

約数ペア:

[(1, 311913420), (2, 155956710), (3, 103971140), (4, 77978355), (5, 62382684), (6, 51985570), (7, 44559060), (10, 31191342), (12, 25992785), (13, 23993340), (14, 22279530), (15, 20794228), (20, 15595671), (21, 14853020), (26, 11996670), (28, 11139765), (30, 10397114), (35, 8911812), (39, 7997780), (42, 7426510), (49, 6365580), (52, 5998335), (60, 5198557), (65, 4798668), (70, 4455906), (78, 3998890), (84, 3713255), (91, 3427620), (98, 3182790), (105, 2970604), (130, 2399334), (140, 2227953), (147, 2121860), (156, 1999445), (182, 1713810), (195, 1599556), (196, 1591395), (210, 1485302), (245, 1273116), (260, 1199667), (273, 1142540), (294, 1060930), (364, 856905), (390, 799778), (420, 742651), (455, 685524), (490, 636558), (546, 571270), (588, 530465), (637, 489660), (735, 424372), (780, 399889), (910, 342762), (980, 318279), (1092, 285635), (1274, 244830), (1365, 228508), (1470, 212186), (1820, 171381), (1911, 163220), (2548, 122415), (2730, 114254), (2940, 106093), (3185, 97932), (3822, 81610), (5460, 57127), (6370, 48966), (7644, 40805), (8161, 38220), (9555, 32644), (12740, 24483), (16322, 19110)]