208979840

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{14197}}^1$

素因数の和:14239

約数の個数: 64

約数和(自身を含む): 521350560

約数和(自身を除く): 312370720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1472, 1840, 2944, 3680, 7360, 14197, 14720, 28394, 56788, 70985, 113576, 141970, 227152, 283940, 326531, 454304, 567880, 653062, 908608, 1135760, 1306124, 1632655, 1817216, 2271520, 2612248, 3265310, 4543040, 5224496, 6530620, 9086080, 10448992, 13061240, 20897984, 26122480, 41795968, 52244960, 104489920, 208979840]

約数ペア:

[(1, 208979840), (2, 104489920), (4, 52244960), (5, 41795968), (8, 26122480), (10, 20897984), (16, 13061240), (20, 10448992), (23, 9086080), (32, 6530620), (40, 5224496), (46, 4543040), (64, 3265310), (80, 2612248), (92, 2271520), (115, 1817216), (128, 1632655), (160, 1306124), (184, 1135760), (230, 908608), (320, 653062), (368, 567880), (460, 454304), (640, 326531), (736, 283940), (920, 227152), (1472, 141970), (1840, 113576), (2944, 70985), (3680, 56788), (7360, 28394), (14197, 14720)]