257193456

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{1181}}^1$

素因数の和:1554

約数の個数: 80

約数和(自身を含む): 718183200

約数和(自身を除く): 460989744

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 349, 624, 698, 1047, 1181, 1396, 2094, 2362, 2792, 3543, 4188, 4537, 4724, 5584, 7086, 8376, 9074, 9448, 13611, 14172, 15353, 16752, 18148, 18896, 27222, 28344, 30706, 36296, 46059, 54444, 56688, 61412, 72592, 92118, 108888, 122824, 184236, 217776, 245648, 368472, 412169, 736944, 824338, 1236507, 1648676, 2473014, 3297352, 4946028, 5358197, 6594704, 9892056, 10716394, 16074591, 19784112, 21432788, 32149182, 42865576, 64298364, 85731152, 128596728, 257193456]

約数ペア:

[(1, 257193456), (2, 128596728), (3, 85731152), (4, 64298364), (6, 42865576), (8, 32149182), (12, 21432788), (13, 19784112), (16, 16074591), (24, 10716394), (26, 9892056), (39, 6594704), (48, 5358197), (52, 4946028), (78, 3297352), (104, 2473014), (156, 1648676), (208, 1236507), (312, 824338), (349, 736944), (624, 412169), (698, 368472), (1047, 245648), (1181, 217776), (1396, 184236), (2094, 122824), (2362, 108888), (2792, 92118), (3543, 72592), (4188, 61412), (4537, 56688), (4724, 54444), (5584, 46059), (7086, 36296), (8376, 30706), (9074, 28344), (9448, 27222), (13611, 18896), (14172, 18148), (15353, 16752)]