19951740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{557}}^1$

素因数の和:771

約数の個数: 72

約数和(自身を含む): 60933600

約数和(自身を除く): 40981860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 398, 557, 597, 796, 995, 1114, 1194, 1671, 1791, 1990, 2228, 2388, 2785, 2985, 3342, 3582, 3980, 5013, 5570, 5970, 6684, 7164, 8355, 8955, 10026, 11140, 11940, 16710, 17910, 20052, 25065, 33420, 35820, 50130, 100260, 110843, 221686, 332529, 443372, 554215, 665058, 997587, 1108430, 1330116, 1662645, 1995174, 2216860, 3325290, 3990348, 4987935, 6650580, 9975870, 19951740]

約数ペア:

[(1, 19951740), (2, 9975870), (3, 6650580), (4, 4987935), (5, 3990348), (6, 3325290), (9, 2216860), (10, 1995174), (12, 1662645), (15, 1330116), (18, 1108430), (20, 997587), (30, 665058), (36, 554215), (45, 443372), (60, 332529), (90, 221686), (180, 110843), (199, 100260), (398, 50130), (557, 35820), (597, 33420), (796, 25065), (995, 20052), (1114, 17910), (1194, 16710), (1671, 11940), (1791, 11140), (1990, 10026), (2228, 8955), (2388, 8355), (2785, 7164), (2985, 6684), (3342, 5970), (3582, 5570), (3980, 5013)]