722680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:136

約数の個数: 64

約数和(自身を含む): 1944000

約数和(自身を除く): 1221320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 89, 116, 140, 145, 178, 203, 232, 280, 290, 356, 406, 445, 580, 623, 712, 812, 890, 1015, 1160, 1246, 1624, 1780, 2030, 2492, 2581, 3115, 3560, 4060, 4984, 5162, 6230, 8120, 10324, 12460, 12905, 18067, 20648, 24920, 25810, 36134, 51620, 72268, 90335, 103240, 144536, 180670, 361340, 722680]

約数ペア:

[(1, 722680), (2, 361340), (4, 180670), (5, 144536), (7, 103240), (8, 90335), (10, 72268), (14, 51620), (20, 36134), (28, 25810), (29, 24920), (35, 20648), (40, 18067), (56, 12905), (58, 12460), (70, 10324), (89, 8120), (116, 6230), (140, 5162), (145, 4984), (178, 4060), (203, 3560), (232, 3115), (280, 2581), (290, 2492), (356, 2030), (406, 1780), (445, 1624), (580, 1246), (623, 1160), (712, 1015), (812, 890)]