2017485820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{23131}}^1$

素因数の和:23243

約数の個数: 72

約数和(自身を含む): 4984020720

約数和(自身を除く): 2966534900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 890, 980, 1246, 1780, 2492, 3115, 4361, 6230, 8722, 12460, 17444, 21805, 23131, 43610, 46262, 87220, 92524, 115655, 161917, 231310, 323834, 462620, 647668, 809585, 1133419, 1619170, 2058659, 2266838, 3238340, 4117318, 4533676, 5667095, 8234636, 10293295, 11334190, 14410613, 20586590, 22668380, 28821226, 41173180, 57642452, 72053065, 100874291, 144106130, 201748582, 288212260, 403497164, 504371455, 1008742910, 2017485820]

約数ペア:

[(1, 2017485820), (2, 1008742910), (4, 504371455), (5, 403497164), (7, 288212260), (10, 201748582), (14, 144106130), (20, 100874291), (28, 72053065), (35, 57642452), (49, 41173180), (70, 28821226), (89, 22668380), (98, 20586590), (140, 14410613), (178, 11334190), (196, 10293295), (245, 8234636), (356, 5667095), (445, 4533676), (490, 4117318), (623, 3238340), (890, 2266838), (980, 2058659), (1246, 1619170), (1780, 1133419), (2492, 809585), (3115, 647668), (4361, 462620), (6230, 323834), (8722, 231310), (12460, 161917), (17444, 115655), (21805, 92524), (23131, 87220), (43610, 46262)]