311944620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{911}}^1$

素因数の和:1375

約数の個数: 96

約数和(自身を含む): 943810560

約数和(自身を除く): 631865940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 439, 780, 878, 911, 1317, 1756, 1822, 2195, 2634, 2733, 3644, 4390, 4555, 5268, 5466, 5707, 6585, 8780, 9110, 10932, 11414, 11843, 13170, 13665, 17121, 18220, 22828, 23686, 26340, 27330, 28535, 34242, 35529, 47372, 54660, 57070, 59215, 68484, 71058, 85605, 114140, 118430, 142116, 171210, 177645, 236860, 342420, 355290, 399929, 710580, 799858, 1199787, 1599716, 1999645, 2399574, 3999290, 4799148, 5199077, 5998935, 7998580, 10398154, 11997870, 15597231, 20796308, 23995740, 25995385, 31194462, 51990770, 62388924, 77986155, 103981540, 155972310, 311944620]

約数ペア:

[(1, 311944620), (2, 155972310), (3, 103981540), (4, 77986155), (5, 62388924), (6, 51990770), (10, 31194462), (12, 25995385), (13, 23995740), (15, 20796308), (20, 15597231), (26, 11997870), (30, 10398154), (39, 7998580), (52, 5998935), (60, 5199077), (65, 4799148), (78, 3999290), (130, 2399574), (156, 1999645), (195, 1599716), (260, 1199787), (390, 799858), (439, 710580), (780, 399929), (878, 355290), (911, 342420), (1317, 236860), (1756, 177645), (1822, 171210), (2195, 142116), (2634, 118430), (2733, 114140), (3644, 85605), (4390, 71058), (4555, 68484), (5268, 59215), (5466, 57070), (5707, 54660), (6585, 47372), (8780, 35529), (9110, 34242), (10932, 28535), (11414, 27330), (11843, 26340), (13170, 23686), (13665, 22828), (17121, 18220)]