20831321520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{280897}}^1$

素因数の和:281019

約数の個数: 120

約数和(自身を含む): 70637981856

約数和(自身を除く): 49806660336

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 103, 120, 144, 180, 206, 240, 309, 360, 412, 515, 618, 720, 824, 927, 1030, 1236, 1545, 1648, 1854, 2060, 2472, 3090, 3708, 4120, 4635, 4944, 6180, 7416, 8240, 9270, 12360, 14832, 18540, 24720, 37080, 74160, 280897, 561794, 842691, 1123588, 1404485, 1685382, 2247176, 2528073, 2808970, 3370764, 4213455, 4494352, 5056146, 5617940, 6741528, 8426910, 10112292, 11235880, 12640365, 13483056, 16853820, 20224584, 22471760, 25280730, 28932391, 33707640, 40449168, 50561460, 57864782, 67415280, 86797173, 101122920, 115729564, 144661955, 173594346, 202245840, 231459128, 260391519, 289323910, 347188692, 433985865, 462918256, 520783038, 578647820, 694377384, 867971730, 1041566076, 1157295640, 1301957595, 1388754768, 1735943460, 2083132152, 2314591280, 2603915190, 3471886920, 4166264304, 5207830380, 6943773840, 10415660760, 20831321520]

約数ペア:

[(1, 20831321520), (2, 10415660760), (3, 6943773840), (4, 5207830380), (5, 4166264304), (6, 3471886920), (8, 2603915190), (9, 2314591280), (10, 2083132152), (12, 1735943460), (15, 1388754768), (16, 1301957595), (18, 1157295640), (20, 1041566076), (24, 867971730), (30, 694377384), (36, 578647820), (40, 520783038), (45, 462918256), (48, 433985865), (60, 347188692), (72, 289323910), (80, 260391519), (90, 231459128), (103, 202245840), (120, 173594346), (144, 144661955), (180, 115729564), (206, 101122920), (240, 86797173), (309, 67415280), (360, 57864782), (412, 50561460), (515, 40449168), (618, 33707640), (720, 28932391), (824, 25280730), (927, 22471760), (1030, 20224584), (1236, 16853820), (1545, 13483056), (1648, 12640365), (1854, 11235880), (2060, 10112292), (2472, 8426910), (3090, 6741528), (3708, 5617940), (4120, 5056146), (4635, 4494352), (4944, 4213455), (6180, 3370764), (7416, 2808970), (8240, 2528073), (9270, 2247176), (12360, 1685382), (14832, 1404485), (18540, 1123588), (24720, 842691), (37080, 561794), (74160, 280897)]