65502220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{751}}^1$

素因数の和:863

約数の個数: 72

約数和(自身を含む): 162025920

約数和(自身を除く): 96523700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 751, 890, 980, 1246, 1502, 1780, 2492, 3004, 3115, 3755, 4361, 5257, 6230, 7510, 8722, 10514, 12460, 15020, 17444, 21028, 21805, 26285, 36799, 43610, 52570, 66839, 73598, 87220, 105140, 133678, 147196, 183995, 267356, 334195, 367990, 467873, 668390, 735980, 935746, 1336780, 1871492, 2339365, 3275111, 4678730, 6550222, 9357460, 13100444, 16375555, 32751110, 65502220]

約数ペア:

[(1, 65502220), (2, 32751110), (4, 16375555), (5, 13100444), (7, 9357460), (10, 6550222), (14, 4678730), (20, 3275111), (28, 2339365), (35, 1871492), (49, 1336780), (70, 935746), (89, 735980), (98, 668390), (140, 467873), (178, 367990), (196, 334195), (245, 267356), (356, 183995), (445, 147196), (490, 133678), (623, 105140), (751, 87220), (890, 73598), (980, 66839), (1246, 52570), (1502, 43610), (1780, 36799), (2492, 26285), (3004, 21805), (3115, 21028), (3755, 17444), (4361, 15020), (5257, 12460), (6230, 10514), (7510, 8722)]