80223520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38569}}^1$

素因数の和:38597

約数の個数: 48

約数和(自身を含む): 204112440

約数和(自身を除く): 123888920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 38569, 77138, 154276, 192845, 308552, 385690, 501397, 617104, 771380, 1002794, 1234208, 1542760, 2005588, 2506985, 3085520, 4011176, 5013970, 6171040, 8022352, 10027940, 16044704, 20055880, 40111760, 80223520]

約数ペア:

[(1, 80223520), (2, 40111760), (4, 20055880), (5, 16044704), (8, 10027940), (10, 8022352), (13, 6171040), (16, 5013970), (20, 4011176), (26, 3085520), (32, 2506985), (40, 2005588), (52, 1542760), (65, 1234208), (80, 1002794), (104, 771380), (130, 617104), (160, 501397), (208, 385690), (260, 308552), (416, 192845), (520, 154276), (1040, 77138), (2080, 38569)]