281314384

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1$

素因数の和:512

約数の個数: 80

約数和(自身を含む): 613242000

約数和(自身を除く): 331927616

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 104, 116, 149, 208, 232, 298, 313, 377, 464, 596, 626, 754, 1192, 1252, 1508, 1937, 2384, 2504, 3016, 3874, 4069, 4321, 5008, 6032, 7748, 8138, 8642, 9077, 15496, 16276, 17284, 18154, 30992, 32552, 34568, 36308, 46637, 56173, 65104, 69136, 72616, 93274, 112346, 118001, 145232, 186548, 224692, 236002, 373096, 449384, 472004, 606281, 746192, 898768, 944008, 1212562, 1352473, 1888016, 2425124, 2704946, 4850248, 5409892, 9700496, 10819784, 17582149, 21639568, 35164298, 70328596, 140657192, 281314384]

約数ペア:

[(1, 281314384), (2, 140657192), (4, 70328596), (8, 35164298), (13, 21639568), (16, 17582149), (26, 10819784), (29, 9700496), (52, 5409892), (58, 4850248), (104, 2704946), (116, 2425124), (149, 1888016), (208, 1352473), (232, 1212562), (298, 944008), (313, 898768), (377, 746192), (464, 606281), (596, 472004), (626, 449384), (754, 373096), (1192, 236002), (1252, 224692), (1508, 186548), (1937, 145232), (2384, 118001), (2504, 112346), (3016, 93274), (3874, 72616), (4069, 69136), (4321, 65104), (5008, 56173), (6032, 46637), (7748, 36308), (8138, 34568), (8642, 32552), (9077, 30992), (15496, 18154), (16276, 17284)]