639768220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4951}}^1$

素因数の和:5051

約数の個数: 96

約数和(自身を含む): 1677182976

約数和(自身を除く): 1037414756

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 71, 91, 130, 140, 142, 182, 260, 284, 355, 364, 455, 497, 710, 910, 923, 994, 1420, 1820, 1846, 1988, 2485, 3692, 4615, 4951, 4970, 6461, 9230, 9902, 9940, 12922, 18460, 19804, 24755, 25844, 32305, 34657, 49510, 64363, 64610, 69314, 99020, 128726, 129220, 138628, 173285, 257452, 321815, 346570, 351521, 450541, 643630, 693140, 703042, 901082, 1287260, 1406084, 1757605, 1802164, 2252705, 2460647, 3515210, 4505410, 4569773, 4921294, 7030420, 9010820, 9139546, 9842588, 12303235, 18279092, 22848865, 24606470, 31988411, 45697730, 49212940, 63976822, 91395460, 127953644, 159942055, 319884110, 639768220]

約数ペア:

[(1, 639768220), (2, 319884110), (4, 159942055), (5, 127953644), (7, 91395460), (10, 63976822), (13, 49212940), (14, 45697730), (20, 31988411), (26, 24606470), (28, 22848865), (35, 18279092), (52, 12303235), (65, 9842588), (70, 9139546), (71, 9010820), (91, 7030420), (130, 4921294), (140, 4569773), (142, 4505410), (182, 3515210), (260, 2460647), (284, 2252705), (355, 1802164), (364, 1757605), (455, 1406084), (497, 1287260), (710, 901082), (910, 703042), (923, 693140), (994, 643630), (1420, 450541), (1820, 351521), (1846, 346570), (1988, 321815), (2485, 257452), (3692, 173285), (4615, 138628), (4951, 129220), (4970, 128726), (6461, 99020), (9230, 69314), (9902, 64610), (9940, 64363), (12922, 49510), (18460, 34657), (19804, 32305), (24755, 25844)]