20295540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2399}}^1$

素因数の和:2461

約数の個数: 72

約数和(自身を含む): 62899200

約数和(自身を除く): 42603660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2399, 2820, 4230, 4798, 7197, 8460, 9596, 11995, 14394, 21591, 23990, 28788, 35985, 43182, 47980, 71970, 86364, 107955, 112753, 143940, 215910, 225506, 338259, 431820, 451012, 563765, 676518, 1014777, 1127530, 1353036, 1691295, 2029554, 2255060, 3382590, 4059108, 5073885, 6765180, 10147770, 20295540]

約数ペア:

[(1, 20295540), (2, 10147770), (3, 6765180), (4, 5073885), (5, 4059108), (6, 3382590), (9, 2255060), (10, 2029554), (12, 1691295), (15, 1353036), (18, 1127530), (20, 1014777), (30, 676518), (36, 563765), (45, 451012), (47, 431820), (60, 338259), (90, 225506), (94, 215910), (141, 143940), (180, 112753), (188, 107955), (235, 86364), (282, 71970), (423, 47980), (470, 43182), (564, 35985), (705, 28788), (846, 23990), (940, 21591), (1410, 14394), (1692, 11995), (2115, 9596), (2399, 8460), (2820, 7197), (4230, 4798)]