20736694520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{429509}}^1$

素因数の和:429608

約数の個数: 64

約数和(自身を含む): 50098046400

約数和(自身を除く): 29361351880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 284, 340, 355, 568, 680, 710, 1207, 1420, 2414, 2840, 4828, 6035, 9656, 12070, 24140, 48280, 429509, 859018, 1718036, 2147545, 3436072, 4295090, 7301653, 8590180, 14603306, 17180360, 29206612, 30495139, 36508265, 58413224, 60990278, 73016530, 121980556, 146033060, 152475695, 243961112, 292066120, 304951390, 518417363, 609902780, 1036834726, 1219805560, 2073669452, 2592086815, 4147338904, 5184173630, 10368347260, 20736694520]

約数ペア:

[(1, 20736694520), (2, 10368347260), (4, 5184173630), (5, 4147338904), (8, 2592086815), (10, 2073669452), (17, 1219805560), (20, 1036834726), (34, 609902780), (40, 518417363), (68, 304951390), (71, 292066120), (85, 243961112), (136, 152475695), (142, 146033060), (170, 121980556), (284, 73016530), (340, 60990278), (355, 58413224), (568, 36508265), (680, 30495139), (710, 29206612), (1207, 17180360), (1420, 14603306), (2414, 8590180), (2840, 7301653), (4828, 4295090), (6035, 3436072), (9656, 2147545), (12070, 1718036), (24140, 859018), (48280, 429509)]