8172220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:323

約数の個数: 72

約数和(自身を含む): 20684160

約数和(自身を除く): 12511940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 269, 310, 434, 490, 538, 620, 868, 980, 1076, 1085, 1345, 1519, 1883, 2170, 2690, 3038, 3766, 4340, 5380, 6076, 7532, 7595, 8339, 9415, 13181, 15190, 16678, 18830, 26362, 30380, 33356, 37660, 41695, 52724, 58373, 65905, 83390, 116746, 131810, 166780, 233492, 263620, 291865, 408611, 583730, 817222, 1167460, 1634444, 2043055, 4086110, 8172220]

約数ペア:

[(1, 8172220), (2, 4086110), (4, 2043055), (5, 1634444), (7, 1167460), (10, 817222), (14, 583730), (20, 408611), (28, 291865), (31, 263620), (35, 233492), (49, 166780), (62, 131810), (70, 116746), (98, 83390), (124, 65905), (140, 58373), (155, 52724), (196, 41695), (217, 37660), (245, 33356), (269, 30380), (310, 26362), (434, 18830), (490, 16678), (538, 15190), (620, 13181), (868, 9415), (980, 8339), (1076, 7595), (1085, 7532), (1345, 6076), (1519, 5380), (1883, 4340), (2170, 3766), (2690, 3038)]