16569980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1667}}^1$

素因数の和:1754

約数の個数: 48

約数和(自身を含む): 40352256

約数和(自身を除く): 23782276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1667, 1988, 2485, 3334, 4970, 6668, 8335, 9940, 11669, 16670, 23338, 33340, 46676, 58345, 116690, 118357, 233380, 236714, 473428, 591785, 828499, 1183570, 1656998, 2367140, 3313996, 4142495, 8284990, 16569980]

約数ペア:

[(1, 16569980), (2, 8284990), (4, 4142495), (5, 3313996), (7, 2367140), (10, 1656998), (14, 1183570), (20, 828499), (28, 591785), (35, 473428), (70, 236714), (71, 233380), (140, 118357), (142, 116690), (284, 58345), (355, 46676), (497, 33340), (710, 23338), (994, 16670), (1420, 11669), (1667, 9940), (1988, 8335), (2485, 6668), (3334, 4970)]