666267376

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^2$

素因数の和:199

約数の個数: 90

約数和(自身を含む): 1429792416

約数和(自身を除く): 763525040

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 61, 62, 76, 122, 124, 152, 244, 248, 304, 361, 488, 496, 589, 722, 976, 1159, 1178, 1444, 1891, 2318, 2356, 2888, 3721, 3782, 4636, 4712, 5776, 7442, 7564, 9272, 9424, 11191, 14884, 15128, 18544, 22021, 22382, 29768, 30256, 35929, 44042, 44764, 59536, 70699, 71858, 88084, 89528, 115351, 141398, 143716, 176168, 179056, 230702, 282796, 287432, 352336, 461404, 565592, 574864, 682651, 922808, 1131184, 1343281, 1365302, 1845616, 2191669, 2686562, 2730604, 4383338, 5373124, 5461208, 8766676, 10746248, 10922416, 17533352, 21492496, 35066704, 41641711, 83283422, 166566844, 333133688, 666267376]

約数ペア:

[(1, 666267376), (2, 333133688), (4, 166566844), (8, 83283422), (16, 41641711), (19, 35066704), (31, 21492496), (38, 17533352), (61, 10922416), (62, 10746248), (76, 8766676), (122, 5461208), (124, 5373124), (152, 4383338), (244, 2730604), (248, 2686562), (304, 2191669), (361, 1845616), (488, 1365302), (496, 1343281), (589, 1131184), (722, 922808), (976, 682651), (1159, 574864), (1178, 565592), (1444, 461404), (1891, 352336), (2318, 287432), (2356, 282796), (2888, 230702), (3721, 179056), (3782, 176168), (4636, 143716), (4712, 141398), (5776, 115351), (7442, 89528), (7564, 88084), (9272, 71858), (9424, 70699), (11191, 59536), (14884, 44764), (15128, 44042), (18544, 35929), (22021, 30256), (22382, 29768)]