128993728

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{823}}^1$

素因数の和:945

約数の個数: 56

約数和(自身を含む): 267898880

約数和(自身を除く): 138905152

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 79, 124, 158, 248, 316, 496, 632, 823, 992, 1264, 1646, 1984, 2449, 2528, 3292, 4898, 5056, 6584, 9796, 13168, 19592, 25513, 26336, 39184, 51026, 52672, 65017, 78368, 102052, 130034, 156736, 204104, 260068, 408208, 520136, 816416, 1040272, 1632832, 2015527, 2080544, 4031054, 4161088, 8062108, 16124216, 32248432, 64496864, 128993728]

約数ペア:

[(1, 128993728), (2, 64496864), (4, 32248432), (8, 16124216), (16, 8062108), (31, 4161088), (32, 4031054), (62, 2080544), (64, 2015527), (79, 1632832), (124, 1040272), (158, 816416), (248, 520136), (316, 408208), (496, 260068), (632, 204104), (823, 156736), (992, 130034), (1264, 102052), (1646, 78368), (1984, 65017), (2449, 52672), (2528, 51026), (3292, 39184), (4898, 26336), (5056, 25513), (6584, 19592), (9796, 13168)]