19942920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1787}}^1$

素因数の和:1835

約数の個数: 96

約数和(自身を含む): 66942720

約数和(自身を除く): 46999800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1787, 1860, 2232, 2790, 3574, 3720, 5361, 5580, 7148, 8935, 10722, 11160, 14296, 16083, 17870, 21444, 26805, 32166, 35740, 42888, 53610, 55397, 64332, 71480, 80415, 107220, 110794, 128664, 160830, 166191, 214440, 221588, 276985, 321660, 332382, 443176, 498573, 553970, 643320, 664764, 830955, 997146, 1107940, 1329528, 1661910, 1994292, 2215880, 2492865, 3323820, 3988584, 4985730, 6647640, 9971460, 19942920]

約数ペア:

[(1, 19942920), (2, 9971460), (3, 6647640), (4, 4985730), (5, 3988584), (6, 3323820), (8, 2492865), (9, 2215880), (10, 1994292), (12, 1661910), (15, 1329528), (18, 1107940), (20, 997146), (24, 830955), (30, 664764), (31, 643320), (36, 553970), (40, 498573), (45, 443176), (60, 332382), (62, 321660), (72, 276985), (90, 221588), (93, 214440), (120, 166191), (124, 160830), (155, 128664), (180, 110794), (186, 107220), (248, 80415), (279, 71480), (310, 64332), (360, 55397), (372, 53610), (465, 42888), (558, 35740), (620, 32166), (744, 26805), (930, 21444), (1116, 17870), (1240, 16083), (1395, 14296), (1787, 11160), (1860, 10722), (2232, 8935), (2790, 7148), (3574, 5580), (3720, 5361)]