177820020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{20161}}^1$

素因数の和:20190

約数の個数: 108

約数和(自身を含む): 627481764

約数和(自身を除く): 449661744

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 20161, 40322, 60483, 80644, 100805, 120966, 141127, 181449, 201610, 241932, 282254, 302415, 362898, 403220, 423381, 564508, 604830, 705635, 725796, 846762, 907245, 987889, 1209660, 1270143, 1411270, 1693524, 1814490, 1975778, 2116905, 2540286, 2822540, 2963667, 3628980, 3951556, 4233810, 4939445, 5080572, 5927334, 6350715, 8467620, 8891001, 9878890, 11854668, 12701430, 14818335, 17782002, 19757780, 25402860, 29636670, 35564004, 44455005, 59273340, 88910010, 177820020]

約数ペア:

[(1, 177820020), (2, 88910010), (3, 59273340), (4, 44455005), (5, 35564004), (6, 29636670), (7, 25402860), (9, 19757780), (10, 17782002), (12, 14818335), (14, 12701430), (15, 11854668), (18, 9878890), (20, 8891001), (21, 8467620), (28, 6350715), (30, 5927334), (35, 5080572), (36, 4939445), (42, 4233810), (45, 3951556), (49, 3628980), (60, 2963667), (63, 2822540), (70, 2540286), (84, 2116905), (90, 1975778), (98, 1814490), (105, 1693524), (126, 1411270), (140, 1270143), (147, 1209660), (180, 987889), (196, 907245), (210, 846762), (245, 725796), (252, 705635), (294, 604830), (315, 564508), (420, 423381), (441, 403220), (490, 362898), (588, 302415), (630, 282254), (735, 241932), (882, 201610), (980, 181449), (1260, 141127), (1470, 120966), (1764, 100805), (2205, 80644), (2940, 60483), (4410, 40322), (8820, 20161)]