15916020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:285

約数の個数: 96

約数和(自身を含む): 47308800

約数和(自身を除く): 31392780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 43, 60, 62, 86, 93, 124, 129, 155, 172, 186, 199, 215, 258, 310, 372, 398, 430, 465, 516, 597, 620, 645, 796, 860, 930, 995, 1194, 1290, 1333, 1860, 1990, 2388, 2580, 2666, 2985, 3980, 3999, 5332, 5970, 6169, 6665, 7998, 8557, 11940, 12338, 13330, 15996, 17114, 18507, 19995, 24676, 25671, 26660, 30845, 34228, 37014, 39990, 42785, 51342, 61690, 74028, 79980, 85570, 92535, 102684, 123380, 128355, 171140, 185070, 256710, 265267, 370140, 513420, 530534, 795801, 1061068, 1326335, 1591602, 2652670, 3183204, 3979005, 5305340, 7958010, 15916020]

約数ペア:

[(1, 15916020), (2, 7958010), (3, 5305340), (4, 3979005), (5, 3183204), (6, 2652670), (10, 1591602), (12, 1326335), (15, 1061068), (20, 795801), (30, 530534), (31, 513420), (43, 370140), (60, 265267), (62, 256710), (86, 185070), (93, 171140), (124, 128355), (129, 123380), (155, 102684), (172, 92535), (186, 85570), (199, 79980), (215, 74028), (258, 61690), (310, 51342), (372, 42785), (398, 39990), (430, 37014), (465, 34228), (516, 30845), (597, 26660), (620, 25671), (645, 24676), (796, 19995), (860, 18507), (930, 17114), (995, 15996), (1194, 13330), (1290, 12338), (1333, 11940), (1860, 8557), (1990, 7998), (2388, 6665), (2580, 6169), (2666, 5970), (2985, 5332), (3980, 3999)]