669407180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:256

約数の個数: 144

約数和(自身を含む): 1644029184

約数和(自身を除く): 974622004

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 31, 46, 52, 62, 65, 92, 115, 124, 130, 155, 157, 230, 260, 299, 310, 314, 403, 460, 529, 598, 620, 628, 713, 785, 806, 1058, 1196, 1426, 1495, 1570, 1612, 2015, 2041, 2116, 2645, 2852, 2990, 3140, 3565, 3611, 4030, 4082, 4867, 5290, 5980, 6877, 7130, 7222, 8060, 8164, 9269, 9734, 10205, 10580, 13754, 14260, 14444, 16399, 18055, 18538, 19468, 20410, 24335, 27508, 32798, 34385, 36110, 37076, 40820, 46345, 46943, 48670, 63271, 65596, 68770, 72220, 81995, 83053, 92690, 93886, 97340, 111941, 126542, 137540, 163990, 166106, 185380, 187772, 213187, 223882, 234715, 253084, 316355, 327980, 332212, 415265, 426374, 447764, 469430, 559705, 632710, 830530, 852748, 938860, 1065935, 1079689, 1119410, 1265420, 1455233, 1661060, 2131870, 2159378, 2238820, 2574643, 2910466, 4263740, 4318756, 5149286, 5398445, 5820932, 7276165, 10298572, 10796890, 12873215, 14552330, 21593780, 25746430, 29104660, 33470359, 51492860, 66940718, 133881436, 167351795, 334703590, 669407180]

約数ペア:

[(1, 669407180), (2, 334703590), (4, 167351795), (5, 133881436), (10, 66940718), (13, 51492860), (20, 33470359), (23, 29104660), (26, 25746430), (31, 21593780), (46, 14552330), (52, 12873215), (62, 10796890), (65, 10298572), (92, 7276165), (115, 5820932), (124, 5398445), (130, 5149286), (155, 4318756), (157, 4263740), (230, 2910466), (260, 2574643), (299, 2238820), (310, 2159378), (314, 2131870), (403, 1661060), (460, 1455233), (529, 1265420), (598, 1119410), (620, 1079689), (628, 1065935), (713, 938860), (785, 852748), (806, 830530), (1058, 632710), (1196, 559705), (1426, 469430), (1495, 447764), (1570, 426374), (1612, 415265), (2015, 332212), (2041, 327980), (2116, 316355), (2645, 253084), (2852, 234715), (2990, 223882), (3140, 213187), (3565, 187772), (3611, 185380), (4030, 166106), (4082, 163990), (4867, 137540), (5290, 126542), (5980, 111941), (6877, 97340), (7130, 93886), (7222, 92690), (8060, 83053), (8164, 81995), (9269, 72220), (9734, 68770), (10205, 65596), (10580, 63271), (13754, 48670), (14260, 46943), (14444, 46345), (16399, 40820), (18055, 37076), (18538, 36110), (19468, 34385), (20410, 32798), (24335, 27508)]