256197240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4211}}^1$

素因数の和:4254

約数の個数: 144

約数和(自身を含む): 901831320

約数和(自身を除く): 645634080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 169, 180, 195, 234, 260, 312, 338, 360, 390, 468, 507, 520, 585, 676, 780, 845, 936, 1014, 1170, 1352, 1521, 1560, 1690, 2028, 2340, 2535, 3042, 3380, 4056, 4211, 4680, 5070, 6084, 6760, 7605, 8422, 10140, 12168, 12633, 15210, 16844, 20280, 21055, 25266, 30420, 33688, 37899, 42110, 50532, 54743, 60840, 63165, 75798, 84220, 101064, 109486, 126330, 151596, 164229, 168440, 189495, 218972, 252660, 273715, 303192, 328458, 378990, 437944, 492687, 505320, 547430, 656916, 711659, 757980, 821145, 985374, 1094860, 1313832, 1423318, 1515960, 1642290, 1970748, 2134977, 2189720, 2463435, 2846636, 3284580, 3558295, 3941496, 4269954, 4926870, 5693272, 6404931, 6569160, 7116590, 8539908, 9853740, 10674885, 12809862, 14233180, 17079816, 19707480, 21349770, 25619724, 28466360, 32024655, 42699540, 51239448, 64049310, 85399080, 128098620, 256197240]

約数ペア:

[(1, 256197240), (2, 128098620), (3, 85399080), (4, 64049310), (5, 51239448), (6, 42699540), (8, 32024655), (9, 28466360), (10, 25619724), (12, 21349770), (13, 19707480), (15, 17079816), (18, 14233180), (20, 12809862), (24, 10674885), (26, 9853740), (30, 8539908), (36, 7116590), (39, 6569160), (40, 6404931), (45, 5693272), (52, 4926870), (60, 4269954), (65, 3941496), (72, 3558295), (78, 3284580), (90, 2846636), (104, 2463435), (117, 2189720), (120, 2134977), (130, 1970748), (156, 1642290), (169, 1515960), (180, 1423318), (195, 1313832), (234, 1094860), (260, 985374), (312, 821145), (338, 757980), (360, 711659), (390, 656916), (468, 547430), (507, 505320), (520, 492687), (585, 437944), (676, 378990), (780, 328458), (845, 303192), (936, 273715), (1014, 252660), (1170, 218972), (1352, 189495), (1521, 168440), (1560, 164229), (1690, 151596), (2028, 126330), (2340, 109486), (2535, 101064), (3042, 84220), (3380, 75798), (4056, 63165), (4211, 60840), (4680, 54743), (5070, 50532), (6084, 42110), (6760, 37899), (7605, 33688), (8422, 30420), (10140, 25266), (12168, 21055), (12633, 20280), (15210, 16844)]