68313820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:319

約数の個数: 72

約数和(自身を含む): 155965824

約数和(自身を除く): 87652004

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 170, 212, 223, 265, 289, 340, 446, 530, 578, 892, 901, 1060, 1115, 1156, 1445, 1802, 2230, 2890, 3604, 3791, 4460, 4505, 5780, 7582, 9010, 11819, 15164, 15317, 18020, 18955, 23638, 30634, 37910, 47276, 59095, 61268, 64447, 75820, 76585, 118190, 128894, 153170, 200923, 236380, 257788, 306340, 322235, 401846, 644470, 803692, 1004615, 1288940, 2009230, 3415691, 4018460, 6831382, 13662764, 17078455, 34156910, 68313820]

約数ペア:

[(1, 68313820), (2, 34156910), (4, 17078455), (5, 13662764), (10, 6831382), (17, 4018460), (20, 3415691), (34, 2009230), (53, 1288940), (68, 1004615), (85, 803692), (106, 644470), (170, 401846), (212, 322235), (223, 306340), (265, 257788), (289, 236380), (340, 200923), (446, 153170), (530, 128894), (578, 118190), (892, 76585), (901, 75820), (1060, 64447), (1115, 61268), (1156, 59095), (1445, 47276), (1802, 37910), (2230, 30634), (2890, 23638), (3604, 18955), (3791, 18020), (4460, 15317), (4505, 15164), (5780, 11819), (7582, 9010)]