18115968

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:240

約数の個数: 128

約数和(自身を含む): 54835200

約数和(自身を除く): 36719232

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 32, 38, 39, 48, 52, 57, 64, 76, 78, 96, 104, 114, 128, 152, 156, 191, 192, 208, 228, 247, 304, 312, 382, 384, 416, 456, 494, 573, 608, 624, 741, 764, 832, 912, 988, 1146, 1216, 1248, 1482, 1528, 1664, 1824, 1976, 2292, 2432, 2483, 2496, 2964, 3056, 3629, 3648, 3952, 4584, 4966, 4992, 5928, 6112, 7258, 7296, 7449, 7904, 9168, 9932, 10887, 11856, 12224, 14516, 14898, 15808, 18336, 19864, 21774, 23712, 24448, 29032, 29796, 31616, 36672, 39728, 43548, 47177, 47424, 58064, 59592, 73344, 79456, 87096, 94354, 94848, 116128, 119184, 141531, 158912, 174192, 188708, 232256, 238368, 283062, 317824, 348384, 377416, 464512, 476736, 566124, 696768, 754832, 953472, 1132248, 1393536, 1509664, 2264496, 3019328, 4528992, 6038656, 9057984, 18115968]

約数ペア:

[(1, 18115968), (2, 9057984), (3, 6038656), (4, 4528992), (6, 3019328), (8, 2264496), (12, 1509664), (13, 1393536), (16, 1132248), (19, 953472), (24, 754832), (26, 696768), (32, 566124), (38, 476736), (39, 464512), (48, 377416), (52, 348384), (57, 317824), (64, 283062), (76, 238368), (78, 232256), (96, 188708), (104, 174192), (114, 158912), (128, 141531), (152, 119184), (156, 116128), (191, 94848), (192, 94354), (208, 87096), (228, 79456), (247, 73344), (304, 59592), (312, 58064), (382, 47424), (384, 47177), (416, 43548), (456, 39728), (494, 36672), (573, 31616), (608, 29796), (624, 29032), (741, 24448), (764, 23712), (832, 21774), (912, 19864), (988, 18336), (1146, 15808), (1216, 14898), (1248, 14516), (1482, 12224), (1528, 11856), (1664, 10887), (1824, 9932), (1976, 9168), (2292, 7904), (2432, 7449), (2483, 7296), (2496, 7258), (2964, 6112), (3056, 5928), (3629, 4992), (3648, 4966), (3952, 4584)]