220278320

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{45139}}^1$

素因数の和:45213

約数の個数: 40

約数和(自身を含む): 520554480

約数和(自身を除く): 300276160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 45139, 90278, 180556, 225695, 361112, 451390, 722224, 902780, 1805560, 2753479, 3611120, 5506958, 11013916, 13767395, 22027832, 27534790, 44055664, 55069580, 110139160, 220278320]

約数ペア:

[(1, 220278320), (2, 110139160), (4, 55069580), (5, 44055664), (8, 27534790), (10, 22027832), (16, 13767395), (20, 11013916), (40, 5506958), (61, 3611120), (80, 2753479), (122, 1805560), (244, 902780), (305, 722224), (488, 451390), (610, 361112), (976, 225695), (1220, 180556), (2440, 90278), (4880, 45139)]