210111980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{13697}}^1$

素因数の和:13778

約数の個数: 48

約数和(自身を含む): 483265440

約数和(自身を除く): 273153460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 236, 260, 295, 590, 767, 1180, 1534, 3068, 3835, 7670, 13697, 15340, 27394, 54788, 68485, 136970, 178061, 273940, 356122, 712244, 808123, 890305, 1616246, 1780610, 3232492, 3561220, 4040615, 8081230, 10505599, 16162460, 21011198, 42022396, 52527995, 105055990, 210111980]

約数ペア:

[(1, 210111980), (2, 105055990), (4, 52527995), (5, 42022396), (10, 21011198), (13, 16162460), (20, 10505599), (26, 8081230), (52, 4040615), (59, 3561220), (65, 3232492), (118, 1780610), (130, 1616246), (236, 890305), (260, 808123), (295, 712244), (590, 356122), (767, 273940), (1180, 178061), (1534, 136970), (3068, 68485), (3835, 54788), (7670, 27394), (13697, 15340)]