20274620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{617}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 44851968

約数和(自身を除く): 24577348

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 106, 124, 155, 212, 265, 310, 530, 617, 620, 1060, 1234, 1643, 2468, 3085, 3286, 6170, 6572, 8215, 12340, 16430, 19127, 32701, 32860, 38254, 65402, 76508, 95635, 130804, 163505, 191270, 327010, 382540, 654020, 1013731, 2027462, 4054924, 5068655, 10137310, 20274620]

約数ペア:

[(1, 20274620), (2, 10137310), (4, 5068655), (5, 4054924), (10, 2027462), (20, 1013731), (31, 654020), (53, 382540), (62, 327010), (106, 191270), (124, 163505), (155, 130804), (212, 95635), (265, 76508), (310, 65402), (530, 38254), (617, 32860), (620, 32701), (1060, 19127), (1234, 16430), (1643, 12340), (2468, 8215), (3085, 6572), (3286, 6170)]