397341880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^2$

素因数の和:369

約数の個数: 96

約数和(自身を含む): 1000218240

約数和(自身を除く): 602876360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 157, 248, 260, 310, 314, 403, 520, 620, 628, 785, 806, 1240, 1256, 1570, 1612, 2015, 2041, 3140, 3224, 4030, 4082, 4867, 6280, 8060, 8164, 9734, 10205, 16120, 16328, 19468, 20410, 24335, 24649, 38936, 40820, 48670, 49298, 63271, 81640, 97340, 98596, 123245, 126542, 194680, 197192, 246490, 253084, 316355, 320437, 492980, 506168, 632710, 640874, 764119, 985960, 1265420, 1281748, 1528238, 1602185, 2530840, 2563496, 3056476, 3204370, 3820595, 6112952, 6408740, 7641190, 9933547, 12817480, 15282380, 19867094, 30564760, 39734188, 49667735, 79468376, 99335470, 198670940, 397341880]

約数ペア:

[(1, 397341880), (2, 198670940), (4, 99335470), (5, 79468376), (8, 49667735), (10, 39734188), (13, 30564760), (20, 19867094), (26, 15282380), (31, 12817480), (40, 9933547), (52, 7641190), (62, 6408740), (65, 6112952), (104, 3820595), (124, 3204370), (130, 3056476), (155, 2563496), (157, 2530840), (248, 1602185), (260, 1528238), (310, 1281748), (314, 1265420), (403, 985960), (520, 764119), (620, 640874), (628, 632710), (785, 506168), (806, 492980), (1240, 320437), (1256, 316355), (1570, 253084), (1612, 246490), (2015, 197192), (2041, 194680), (3140, 126542), (3224, 123245), (4030, 98596), (4082, 97340), (4867, 81640), (6280, 63271), (8060, 49298), (8164, 48670), (9734, 40820), (10205, 38936), (16120, 24649), (16328, 24335), (19468, 20410)]