78794380

素因数分解:

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

素因数の和:8014

約数の個数: 48

約数和(自身を含む): 191794176

約数和(自身を除く): 112999796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 7927, 9940, 15854, 31708, 39635, 55489, 79270, 110978, 158540, 221956, 277445, 554890, 562817, 1109780, 1125634, 2251268, 2814085, 3939719, 5628170, 7879438, 11256340, 15758876, 19698595, 39397190, 78794380]

約数ペア:

[(1, 78794380), (2, 39397190), (4, 19698595), (5, 15758876), (7, 11256340), (10, 7879438), (14, 5628170), (20, 3939719), (28, 2814085), (35, 2251268), (70, 1125634), (71, 1109780), (140, 562817), (142, 554890), (284, 277445), (355, 221956), (497, 158540), (710, 110978), (994, 79270), (1420, 55489), (1988, 39635), (2485, 31708), (4970, 15854), (7927, 9940)]