331388728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{4217}}^1$

素因数の和:4300

約数の個数: 64

約数和(自身を含む): 728870400

約数和(自身を除く): 397481672

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 47, 76, 88, 94, 152, 188, 209, 376, 418, 517, 836, 893, 1034, 1672, 1786, 2068, 3572, 4136, 4217, 7144, 8434, 9823, 16868, 19646, 33736, 39292, 46387, 78584, 80123, 92774, 160246, 185548, 198199, 320492, 371096, 396398, 640984, 792796, 881353, 1585592, 1762706, 2180189, 3525412, 3765781, 4360378, 7050824, 7531562, 8720756, 15063124, 17441512, 30126248, 41423591, 82847182, 165694364, 331388728]

約数ペア:

[(1, 331388728), (2, 165694364), (4, 82847182), (8, 41423591), (11, 30126248), (19, 17441512), (22, 15063124), (38, 8720756), (44, 7531562), (47, 7050824), (76, 4360378), (88, 3765781), (94, 3525412), (152, 2180189), (188, 1762706), (209, 1585592), (376, 881353), (418, 792796), (517, 640984), (836, 396398), (893, 371096), (1034, 320492), (1672, 198199), (1786, 185548), (2068, 160246), (3572, 92774), (4136, 80123), (4217, 78584), (7144, 46387), (8434, 39292), (9823, 33736), (16868, 19646)]