641020728

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{6577}}^1$

素因数の和:6748

約数の個数: 64

約数和(自身を含む): 1667128320

約数和(自身を除く): 1026107592

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 131, 186, 248, 262, 372, 393, 524, 744, 786, 1048, 1572, 3144, 4061, 6577, 8122, 12183, 13154, 16244, 19731, 24366, 26308, 32488, 39462, 48732, 52616, 78924, 97464, 157848, 203887, 407774, 611661, 815548, 861587, 1223322, 1631096, 1723174, 2446644, 2584761, 3446348, 4893288, 5169522, 6892696, 10339044, 20678088, 26709197, 53418394, 80127591, 106836788, 160255182, 213673576, 320510364, 641020728]

約数ペア:

[(1, 641020728), (2, 320510364), (3, 213673576), (4, 160255182), (6, 106836788), (8, 80127591), (12, 53418394), (24, 26709197), (31, 20678088), (62, 10339044), (93, 6892696), (124, 5169522), (131, 4893288), (186, 3446348), (248, 2584761), (262, 2446644), (372, 1723174), (393, 1631096), (524, 1223322), (744, 861587), (786, 815548), (1048, 611661), (1572, 407774), (3144, 203887), (4061, 157848), (6577, 97464), (8122, 78924), (12183, 52616), (13154, 48732), (16244, 39462), (19731, 32488), (24366, 26308)]