71210680

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 164656800

約数和(自身を除く): 93446120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 89, 166, 178, 241, 332, 356, 415, 445, 482, 664, 712, 830, 890, 964, 1205, 1660, 1780, 1928, 2410, 3320, 3560, 4820, 7387, 9640, 14774, 20003, 21449, 29548, 36935, 40006, 42898, 59096, 73870, 80012, 85796, 100015, 107245, 147740, 160024, 171592, 200030, 214490, 295480, 400060, 428980, 800120, 857960, 1780267, 3560534, 7121068, 8901335, 14242136, 17802670, 35605340, 71210680]

約数ペア:

[(1, 71210680), (2, 35605340), (4, 17802670), (5, 14242136), (8, 8901335), (10, 7121068), (20, 3560534), (40, 1780267), (83, 857960), (89, 800120), (166, 428980), (178, 400060), (241, 295480), (332, 214490), (356, 200030), (415, 171592), (445, 160024), (482, 147740), (664, 107245), (712, 100015), (830, 85796), (890, 80012), (964, 73870), (1205, 59096), (1660, 42898), (1780, 40006), (1928, 36935), (2410, 29548), (3320, 21449), (3560, 20003), (4820, 14774), (7387, 9640)]