21990959940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{499}}^1\times {\mathrm{12041}}^1$

素因数の和:12613

約数の個数: 96

約数和(自身を含む): 62714736000

約数和(自身を除く): 40723776060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 499, 610, 732, 915, 998, 1220, 1497, 1830, 1996, 2495, 2994, 3660, 4990, 5988, 7485, 9980, 12041, 14970, 24082, 29940, 30439, 36123, 48164, 60205, 60878, 72246, 91317, 120410, 121756, 144492, 152195, 180615, 182634, 240820, 304390, 361230, 365268, 456585, 608780, 722460, 734501, 913170, 1469002, 1826340, 2203503, 2938004, 3672505, 4407006, 6008459, 7345010, 8814012, 11017515, 12016918, 14690020, 18025377, 22035030, 24033836, 30042295, 36050754, 44070060, 60084590, 72101508, 90126885, 120169180, 180253770, 360507540, 366515999, 733031998, 1099547997, 1466063996, 1832579995, 2199095994, 3665159990, 4398191988, 5497739985, 7330319980, 10995479970, 21990959940]

約数ペア:

[(1, 21990959940), (2, 10995479970), (3, 7330319980), (4, 5497739985), (5, 4398191988), (6, 3665159990), (10, 2199095994), (12, 1832579995), (15, 1466063996), (20, 1099547997), (30, 733031998), (60, 366515999), (61, 360507540), (122, 180253770), (183, 120169180), (244, 90126885), (305, 72101508), (366, 60084590), (499, 44070060), (610, 36050754), (732, 30042295), (915, 24033836), (998, 22035030), (1220, 18025377), (1497, 14690020), (1830, 12016918), (1996, 11017515), (2495, 8814012), (2994, 7345010), (3660, 6008459), (4990, 4407006), (5988, 3672505), (7485, 2938004), (9980, 2203503), (12041, 1826340), (14970, 1469002), (24082, 913170), (29940, 734501), (30439, 722460), (36123, 608780), (48164, 456585), (60205, 365268), (60878, 361230), (72246, 304390), (91317, 240820), (120410, 182634), (121756, 180615), (144492, 152195)]