20371320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{797}}^1$

素因数の和:885

約数の個数: 96

約数和(自身を含む): 67223520

約数和(自身を除く): 46852200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 180, 213, 284, 355, 360, 426, 568, 639, 710, 797, 852, 1065, 1278, 1420, 1594, 1704, 2130, 2391, 2556, 2840, 3188, 3195, 3985, 4260, 4782, 5112, 6376, 6390, 7173, 7970, 8520, 9564, 11955, 12780, 14346, 15940, 19128, 23910, 25560, 28692, 31880, 35865, 47820, 56587, 57384, 71730, 95640, 113174, 143460, 169761, 226348, 282935, 286920, 339522, 452696, 509283, 565870, 679044, 848805, 1018566, 1131740, 1358088, 1697610, 2037132, 2263480, 2546415, 3395220, 4074264, 5092830, 6790440, 10185660, 20371320]

約数ペア:

[(1, 20371320), (2, 10185660), (3, 6790440), (4, 5092830), (5, 4074264), (6, 3395220), (8, 2546415), (9, 2263480), (10, 2037132), (12, 1697610), (15, 1358088), (18, 1131740), (20, 1018566), (24, 848805), (30, 679044), (36, 565870), (40, 509283), (45, 452696), (60, 339522), (71, 286920), (72, 282935), (90, 226348), (120, 169761), (142, 143460), (180, 113174), (213, 95640), (284, 71730), (355, 57384), (360, 56587), (426, 47820), (568, 35865), (639, 31880), (710, 28692), (797, 25560), (852, 23910), (1065, 19128), (1278, 15940), (1420, 14346), (1594, 12780), (1704, 11955), (2130, 9564), (2391, 8520), (2556, 7970), (2840, 7173), (3188, 6390), (3195, 6376), (3985, 5112), (4260, 4782)]