220404990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{1151}}^1$

素因数の和:1665

約数の個数: 64

約数和(自身を含む): 571318272

約数和(自身を除く): 350913282

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 491, 982, 1151, 1473, 2302, 2455, 2946, 3453, 4910, 5755, 6383, 6906, 7365, 11510, 12766, 14730, 14963, 17265, 19149, 29926, 31915, 34530, 38298, 44889, 63830, 74815, 89778, 95745, 149630, 191490, 224445, 448890, 565141, 1130282, 1695423, 2825705, 3390846, 5651410, 7346833, 8477115, 14693666, 16954230, 22040499, 36734165, 44080998, 73468330, 110202495, 220404990]

約数ペア:

[(1, 220404990), (2, 110202495), (3, 73468330), (5, 44080998), (6, 36734165), (10, 22040499), (13, 16954230), (15, 14693666), (26, 8477115), (30, 7346833), (39, 5651410), (65, 3390846), (78, 2825705), (130, 1695423), (195, 1130282), (390, 565141), (491, 448890), (982, 224445), (1151, 191490), (1473, 149630), (2302, 95745), (2455, 89778), (2946, 74815), (3453, 63830), (4910, 44889), (5755, 38298), (6383, 34530), (6906, 31915), (7365, 29926), (11510, 19149), (12766, 17265), (14730, 14963)]