31130820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{797}}^1$

素因数の和:850

約数の個数: 144

約数和(自身を含む): 111541248

約数和(自身を除く): 80410428

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 797, 868, 930, 1085, 1116, 1260, 1302, 1395, 1594, 1860, 1953, 2170, 2391, 2604, 2790, 3188, 3255, 3906, 3985, 4340, 4782, 5579, 5580, 6510, 7173, 7812, 7970, 9564, 9765, 11158, 11955, 13020, 14346, 15940, 16737, 19530, 22316, 23910, 24707, 27895, 28692, 33474, 35865, 39060, 47820, 49414, 50211, 55790, 66948, 71730, 74121, 83685, 98828, 100422, 111580, 123535, 143460, 148242, 167370, 172949, 200844, 222363, 247070, 251055, 296484, 334740, 345898, 370605, 444726, 494140, 502110, 518847, 691796, 741210, 864745, 889452, 1004220, 1037694, 1111815, 1482420, 1556541, 1729490, 2075388, 2223630, 2594235, 3113082, 3458980, 4447260, 5188470, 6226164, 7782705, 10376940, 15565410, 31130820]

約数ペア:

[(1, 31130820), (2, 15565410), (3, 10376940), (4, 7782705), (5, 6226164), (6, 5188470), (7, 4447260), (9, 3458980), (10, 3113082), (12, 2594235), (14, 2223630), (15, 2075388), (18, 1729490), (20, 1556541), (21, 1482420), (28, 1111815), (30, 1037694), (31, 1004220), (35, 889452), (36, 864745), (42, 741210), (45, 691796), (60, 518847), (62, 502110), (63, 494140), (70, 444726), (84, 370605), (90, 345898), (93, 334740), (105, 296484), (124, 251055), (126, 247070), (140, 222363), (155, 200844), (180, 172949), (186, 167370), (210, 148242), (217, 143460), (252, 123535), (279, 111580), (310, 100422), (315, 98828), (372, 83685), (420, 74121), (434, 71730), (465, 66948), (558, 55790), (620, 50211), (630, 49414), (651, 47820), (797, 39060), (868, 35865), (930, 33474), (1085, 28692), (1116, 27895), (1260, 24707), (1302, 23910), (1395, 22316), (1594, 19530), (1860, 16737), (1953, 15940), (2170, 14346), (2391, 13020), (2604, 11955), (2790, 11158), (3188, 9765), (3255, 9564), (3906, 7970), (3985, 7812), (4340, 7173), (4782, 6510), (5579, 5580)]