445647280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1187}}^1$

素因数の和:1251

約数の個数: 120

約数和(自身を含む): 1178643312

約数和(自身を除く): 732996032

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 361, 380, 494, 520, 722, 760, 988, 1040, 1187, 1235, 1444, 1520, 1805, 1976, 2374, 2470, 2888, 3610, 3952, 4693, 4748, 4940, 5776, 5935, 7220, 9386, 9496, 9880, 11870, 14440, 15431, 18772, 18992, 19760, 22553, 23465, 23740, 28880, 30862, 37544, 45106, 46930, 47480, 61724, 75088, 77155, 90212, 93860, 94960, 112765, 123448, 154310, 180424, 187720, 225530, 246896, 293189, 308620, 360848, 375440, 428507, 451060, 586378, 617240, 857014, 902120, 1172756, 1234480, 1465945, 1714028, 1804240, 2142535, 2345512, 2931890, 3428056, 4285070, 4691024, 5570591, 5863780, 6856112, 8570140, 11141182, 11727560, 17140280, 22282364, 23455120, 27852955, 34280560, 44564728, 55705910, 89129456, 111411820, 222823640, 445647280]

約数ペア:

[(1, 445647280), (2, 222823640), (4, 111411820), (5, 89129456), (8, 55705910), (10, 44564728), (13, 34280560), (16, 27852955), (19, 23455120), (20, 22282364), (26, 17140280), (38, 11727560), (40, 11141182), (52, 8570140), (65, 6856112), (76, 5863780), (80, 5570591), (95, 4691024), (104, 4285070), (130, 3428056), (152, 2931890), (190, 2345512), (208, 2142535), (247, 1804240), (260, 1714028), (304, 1465945), (361, 1234480), (380, 1172756), (494, 902120), (520, 857014), (722, 617240), (760, 586378), (988, 451060), (1040, 428507), (1187, 375440), (1235, 360848), (1444, 308620), (1520, 293189), (1805, 246896), (1976, 225530), (2374, 187720), (2470, 180424), (2888, 154310), (3610, 123448), (3952, 112765), (4693, 94960), (4748, 93860), (4940, 90212), (5776, 77155), (5935, 75088), (7220, 61724), (9386, 47480), (9496, 46930), (9880, 45106), (11870, 37544), (14440, 30862), (15431, 28880), (18772, 23740), (18992, 23465), (19760, 22553)]