315177520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7927}}^1$

素因数の和:8018

約数の個数: 80

約数和(自身を含む): 849374208

約数和(自身を除く): 534196688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1988, 2485, 2840, 3976, 4970, 5680, 7927, 7952, 9940, 15854, 19880, 31708, 39635, 39760, 55489, 63416, 79270, 110978, 126832, 158540, 221956, 277445, 317080, 443912, 554890, 562817, 634160, 887824, 1109780, 1125634, 2219560, 2251268, 2814085, 3939719, 4439120, 4502536, 5628170, 7879438, 9005072, 11256340, 15758876, 19698595, 22512680, 31517752, 39397190, 45025360, 63035504, 78794380, 157588760, 315177520]

約数ペア:

[(1, 315177520), (2, 157588760), (4, 78794380), (5, 63035504), (7, 45025360), (8, 39397190), (10, 31517752), (14, 22512680), (16, 19698595), (20, 15758876), (28, 11256340), (35, 9005072), (40, 7879438), (56, 5628170), (70, 4502536), (71, 4439120), (80, 3939719), (112, 2814085), (140, 2251268), (142, 2219560), (280, 1125634), (284, 1109780), (355, 887824), (497, 634160), (560, 562817), (568, 554890), (710, 443912), (994, 317080), (1136, 277445), (1420, 221956), (1988, 158540), (2485, 126832), (2840, 110978), (3976, 79270), (4970, 63416), (5680, 55489), (7927, 39760), (7952, 39635), (9940, 31708), (15854, 19880)]