647539408

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{313}}^1$

素因数の和:492

約数の個数: 80

約数和(自身を含む): 1343136256

約数和(自身を除く): 695596848

約数列:

[1, 2, 4, 8, 16, 31, 43, 62, 86, 97, 124, 172, 194, 248, 313, 344, 388, 496, 626, 688, 776, 1252, 1333, 1552, 2504, 2666, 3007, 4171, 5008, 5332, 6014, 8342, 9703, 10664, 12028, 13459, 16684, 19406, 21328, 24056, 26918, 30361, 33368, 38812, 48112, 53836, 60722, 66736, 77624, 107672, 121444, 129301, 155248, 215344, 242888, 258602, 417229, 485776, 517204, 834458, 941191, 1034408, 1305523, 1668916, 1882382, 2068816, 2611046, 3337832, 3764764, 5222092, 6675664, 7529528, 10444184, 15059056, 20888368, 40471213, 80942426, 161884852, 323769704, 647539408]

約数ペア:

[(1, 647539408), (2, 323769704), (4, 161884852), (8, 80942426), (16, 40471213), (31, 20888368), (43, 15059056), (62, 10444184), (86, 7529528), (97, 6675664), (124, 5222092), (172, 3764764), (194, 3337832), (248, 2611046), (313, 2068816), (344, 1882382), (388, 1668916), (496, 1305523), (626, 1034408), (688, 941191), (776, 834458), (1252, 517204), (1333, 485776), (1552, 417229), (2504, 258602), (2666, 242888), (3007, 215344), (4171, 155248), (5008, 129301), (5332, 121444), (6014, 107672), (8342, 77624), (9703, 66736), (10664, 60722), (12028, 53836), (13459, 48112), (16684, 38812), (19406, 33368), (21328, 30361), (24056, 26918)]