20731290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9733}}^1$

素因数の和:9814

約数の個数: 32

約数和(自身を含む): 50461056

約数和(自身を除く): 29729766

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130, 9733, 19466, 29199, 48665, 58398, 97330, 145995, 291990, 691043, 1382086, 2073129, 3455215, 4146258, 6910430, 10365645, 20731290]

約数ペア:

[(1, 20731290), (2, 10365645), (3, 6910430), (5, 4146258), (6, 3455215), (10, 2073129), (15, 1382086), (30, 691043), (71, 291990), (142, 145995), (213, 97330), (355, 58398), (426, 48665), (710, 29199), (1065, 19466), (2130, 9733)]