81683368

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{983}}^1$

素因数の和:1066

約数の個数: 64

約数和(自身を含む): 178536960

約数和(自身を除く): 96853592

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 47, 52, 68, 94, 104, 136, 188, 221, 376, 442, 611, 799, 884, 983, 1222, 1598, 1768, 1966, 2444, 3196, 3932, 4888, 6392, 7864, 10387, 12779, 16711, 20774, 25558, 33422, 41548, 46201, 51116, 66844, 83096, 92402, 102232, 133688, 184804, 217243, 369608, 434486, 600613, 785417, 868972, 1201226, 1570834, 1737944, 2402452, 3141668, 4804904, 6283336, 10210421, 20420842, 40841684, 81683368]

約数ペア:

[(1, 81683368), (2, 40841684), (4, 20420842), (8, 10210421), (13, 6283336), (17, 4804904), (26, 3141668), (34, 2402452), (47, 1737944), (52, 1570834), (68, 1201226), (94, 868972), (104, 785417), (136, 600613), (188, 434486), (221, 369608), (376, 217243), (442, 184804), (611, 133688), (799, 102232), (884, 92402), (983, 83096), (1222, 66844), (1598, 51116), (1768, 46201), (1966, 41548), (2444, 33422), (3196, 25558), (3932, 20774), (4888, 16711), (6392, 12779), (7864, 10387)]