904430020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{821}}^1$

素因数の和:1085

約数の個数: 96

約数和(自身を含む): 2165345280

約数和(自身を除く): 1260915260

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 223, 247, 260, 380, 446, 494, 821, 892, 988, 1115, 1235, 1642, 2230, 2470, 2899, 3284, 4105, 4237, 4460, 4940, 5798, 8210, 8474, 10673, 11596, 14495, 15599, 16420, 16948, 21185, 21346, 28990, 31198, 42370, 42692, 53365, 55081, 57980, 62396, 77995, 84740, 106730, 110162, 155990, 183083, 202787, 213460, 220324, 275405, 311980, 366166, 405574, 550810, 732332, 811148, 915415, 1013935, 1101620, 1830830, 2027870, 2380079, 3478577, 3661660, 4055740, 4760158, 6957154, 9520316, 11900395, 13914308, 17392885, 23800790, 34785770, 45221501, 47601580, 69571540, 90443002, 180886004, 226107505, 452215010, 904430020]

約数ペア:

[(1, 904430020), (2, 452215010), (4, 226107505), (5, 180886004), (10, 90443002), (13, 69571540), (19, 47601580), (20, 45221501), (26, 34785770), (38, 23800790), (52, 17392885), (65, 13914308), (76, 11900395), (95, 9520316), (130, 6957154), (190, 4760158), (223, 4055740), (247, 3661660), (260, 3478577), (380, 2380079), (446, 2027870), (494, 1830830), (821, 1101620), (892, 1013935), (988, 915415), (1115, 811148), (1235, 732332), (1642, 550810), (2230, 405574), (2470, 366166), (2899, 311980), (3284, 275405), (4105, 220324), (4237, 213460), (4460, 202787), (4940, 183083), (5798, 155990), (8210, 110162), (8474, 106730), (10673, 84740), (11596, 77995), (14495, 62396), (15599, 57980), (16420, 55081), (16948, 53365), (21185, 42692), (21346, 42370), (28990, 31198)]