2278640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1$

素因数の和:346

約数の個数: 80

約数和(自身を含む): 6541248

約数和(自身を除く): 4262608

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 313, 364, 455, 520, 560, 626, 728, 910, 1040, 1252, 1456, 1565, 1820, 2191, 2504, 3130, 3640, 4069, 4382, 5008, 6260, 7280, 8138, 8764, 10955, 12520, 16276, 17528, 20345, 21910, 25040, 28483, 32552, 35056, 40690, 43820, 56966, 65104, 81380, 87640, 113932, 142415, 162760, 175280, 227864, 284830, 325520, 455728, 569660, 1139320, 2278640]

約数ペア:

[(1, 2278640), (2, 1139320), (4, 569660), (5, 455728), (7, 325520), (8, 284830), (10, 227864), (13, 175280), (14, 162760), (16, 142415), (20, 113932), (26, 87640), (28, 81380), (35, 65104), (40, 56966), (52, 43820), (56, 40690), (65, 35056), (70, 32552), (80, 28483), (91, 25040), (104, 21910), (112, 20345), (130, 17528), (140, 16276), (182, 12520), (208, 10955), (260, 8764), (280, 8138), (313, 7280), (364, 6260), (455, 5008), (520, 4382), (560, 4069), (626, 3640), (728, 3130), (910, 2504), (1040, 2191), (1252, 1820), (1456, 1565)]