80970540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{27541}}^1$

素因数の和:27567

約数の個数: 72

約数和(自身を含む): 263742192

約数和(自身を除く): 182771652

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 27541, 55082, 82623, 110164, 137705, 165246, 192787, 275410, 330492, 385574, 413115, 550820, 578361, 771148, 826230, 963935, 1156722, 1349509, 1652460, 1927870, 2313444, 2699018, 2891805, 3855740, 4048527, 5398036, 5783610, 6747545, 8097054, 11567220, 13495090, 16194108, 20242635, 26990180, 40485270, 80970540]

約数ペア:

[(1, 80970540), (2, 40485270), (3, 26990180), (4, 20242635), (5, 16194108), (6, 13495090), (7, 11567220), (10, 8097054), (12, 6747545), (14, 5783610), (15, 5398036), (20, 4048527), (21, 3855740), (28, 2891805), (30, 2699018), (35, 2313444), (42, 1927870), (49, 1652460), (60, 1349509), (70, 1156722), (84, 963935), (98, 826230), (105, 771148), (140, 578361), (147, 550820), (196, 413115), (210, 385574), (245, 330492), (294, 275410), (420, 192787), (490, 165246), (588, 137705), (735, 110164), (980, 82623), (1470, 55082), (2940, 27541)]