640392792

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{907}}^1$

素因数の和:1033

約数の個数: 128

約数和(自身を含む): 1806120960

約数和(自身を除く): 1165728168

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 31, 39, 52, 62, 73, 78, 93, 104, 124, 146, 156, 186, 219, 248, 292, 312, 372, 403, 438, 584, 744, 806, 876, 907, 949, 1209, 1612, 1752, 1814, 1898, 2263, 2418, 2721, 2847, 3224, 3628, 3796, 4526, 4836, 5442, 5694, 6789, 7256, 7592, 9052, 9672, 10884, 11388, 11791, 13578, 18104, 21768, 22776, 23582, 27156, 28117, 29419, 35373, 47164, 54312, 56234, 58838, 66211, 70746, 84351, 88257, 94328, 112468, 117676, 132422, 141492, 168702, 176514, 198633, 224936, 235352, 264844, 282984, 337404, 353028, 365521, 397266, 529688, 674808, 706056, 731042, 794532, 860743, 1096563, 1462084, 1589064, 1721486, 2052541, 2193126, 2582229, 2924168, 3442972, 4105082, 4386252, 5164458, 6157623, 6885944, 8210164, 8772504, 10328916, 12315246, 16420328, 20657832, 24630492, 26683033, 49260984, 53366066, 80049099, 106732132, 160098198, 213464264, 320196396, 640392792]

約数ペア:

[(1, 640392792), (2, 320196396), (3, 213464264), (4, 160098198), (6, 106732132), (8, 80049099), (12, 53366066), (13, 49260984), (24, 26683033), (26, 24630492), (31, 20657832), (39, 16420328), (52, 12315246), (62, 10328916), (73, 8772504), (78, 8210164), (93, 6885944), (104, 6157623), (124, 5164458), (146, 4386252), (156, 4105082), (186, 3442972), (219, 2924168), (248, 2582229), (292, 2193126), (312, 2052541), (372, 1721486), (403, 1589064), (438, 1462084), (584, 1096563), (744, 860743), (806, 794532), (876, 731042), (907, 706056), (949, 674808), (1209, 529688), (1612, 397266), (1752, 365521), (1814, 353028), (1898, 337404), (2263, 282984), (2418, 264844), (2721, 235352), (2847, 224936), (3224, 198633), (3628, 176514), (3796, 168702), (4526, 141492), (4836, 132422), (5442, 117676), (5694, 112468), (6789, 94328), (7256, 88257), (7592, 84351), (9052, 70746), (9672, 66211), (10884, 58838), (11388, 56234), (11791, 54312), (13578, 47164), (18104, 35373), (21768, 29419), (22776, 28117), (23582, 27156)]