83128360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:267

約数の個数: 128

約数和(自身を含む): 225699840

約数和(自身を除く): 142571480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 61, 62, 70, 122, 124, 140, 155, 157, 217, 244, 248, 280, 305, 310, 314, 427, 434, 488, 610, 620, 628, 785, 854, 868, 1085, 1099, 1220, 1240, 1256, 1570, 1708, 1736, 1891, 2135, 2170, 2198, 2440, 3140, 3416, 3782, 4270, 4340, 4396, 4867, 5495, 6280, 7564, 8540, 8680, 8792, 9455, 9577, 9734, 10990, 13237, 15128, 17080, 18910, 19154, 19468, 21980, 24335, 26474, 34069, 37820, 38308, 38936, 43960, 47885, 48670, 52948, 66185, 67039, 68138, 75640, 76616, 95770, 97340, 105896, 132370, 134078, 136276, 170345, 191540, 194680, 264740, 268156, 272552, 296887, 335195, 340690, 383080, 529480, 536312, 593774, 670390, 681380, 1187548, 1340780, 1362760, 1484435, 2078209, 2375096, 2681560, 2968870, 4156418, 5937740, 8312836, 10391045, 11875480, 16625672, 20782090, 41564180, 83128360]

約数ペア:

[(1, 83128360), (2, 41564180), (4, 20782090), (5, 16625672), (7, 11875480), (8, 10391045), (10, 8312836), (14, 5937740), (20, 4156418), (28, 2968870), (31, 2681560), (35, 2375096), (40, 2078209), (56, 1484435), (61, 1362760), (62, 1340780), (70, 1187548), (122, 681380), (124, 670390), (140, 593774), (155, 536312), (157, 529480), (217, 383080), (244, 340690), (248, 335195), (280, 296887), (305, 272552), (310, 268156), (314, 264740), (427, 194680), (434, 191540), (488, 170345), (610, 136276), (620, 134078), (628, 132370), (785, 105896), (854, 97340), (868, 95770), (1085, 76616), (1099, 75640), (1220, 68138), (1240, 67039), (1256, 66185), (1570, 52948), (1708, 48670), (1736, 47885), (1891, 43960), (2135, 38936), (2170, 38308), (2198, 37820), (2440, 34069), (3140, 26474), (3416, 24335), (3782, 21980), (4270, 19468), (4340, 19154), (4396, 18910), (4867, 17080), (5495, 15128), (6280, 13237), (7564, 10990), (8540, 9734), (8680, 9577), (8792, 9455)]