80918940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{22109}}^1$

素因数の和:22182

約数の個数: 48

約数和(自身を含む): 230297760

約数和(自身を除く): 149378820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 22109, 44218, 66327, 88436, 110545, 132654, 221090, 265308, 331635, 442180, 663270, 1326540, 1348649, 2697298, 4045947, 5394596, 6743245, 8091894, 13486490, 16183788, 20229735, 26972980, 40459470, 80918940]

約数ペア:

[(1, 80918940), (2, 40459470), (3, 26972980), (4, 20229735), (5, 16183788), (6, 13486490), (10, 8091894), (12, 6743245), (15, 5394596), (20, 4045947), (30, 2697298), (60, 1348649), (61, 1326540), (122, 663270), (183, 442180), (244, 331635), (305, 265308), (366, 221090), (610, 132654), (732, 110545), (915, 88436), (1220, 66327), (1830, 44218), (3660, 22109)]