639763320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{761623}}^1$

素因数の和:761644

約数の個数: 64

約数和(自身を含む): 2193477120

約数和(自身を除く): 1553713800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 761623, 1523246, 2284869, 3046492, 3808115, 4569738, 5331361, 6092984, 7616230, 9139476, 10662722, 11424345, 15232460, 15994083, 18278952, 21325444, 22848690, 26656805, 30464920, 31988166, 42650888, 45697380, 53313610, 63976332, 79970415, 91394760, 106627220, 127952664, 159940830, 213254440, 319881660, 639763320]

約数ペア:

[(1, 639763320), (2, 319881660), (3, 213254440), (4, 159940830), (5, 127952664), (6, 106627220), (7, 91394760), (8, 79970415), (10, 63976332), (12, 53313610), (14, 45697380), (15, 42650888), (20, 31988166), (21, 30464920), (24, 26656805), (28, 22848690), (30, 21325444), (35, 18278952), (40, 15994083), (42, 15232460), (56, 11424345), (60, 10662722), (70, 9139476), (84, 7616230), (105, 6092984), (120, 5331361), (140, 4569738), (168, 3808115), (210, 3046492), (280, 2284869), (420, 1523246), (840, 761623)]