68474980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{28771}}^1$

素因数の和:28804

約数の個数: 48

約数和(自身を含む): 174013056

約数和(自身を除く): 105538076

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 28771, 57542, 115084, 143855, 201397, 287710, 402794, 489107, 575420, 805588, 978214, 1006985, 1956428, 2013970, 2445535, 3423749, 4027940, 4891070, 6847498, 9782140, 13694996, 17118745, 34237490, 68474980]

約数ペア:

[(1, 68474980), (2, 34237490), (4, 17118745), (5, 13694996), (7, 9782140), (10, 6847498), (14, 4891070), (17, 4027940), (20, 3423749), (28, 2445535), (34, 2013970), (35, 1956428), (68, 1006985), (70, 978214), (85, 805588), (119, 575420), (140, 489107), (170, 402794), (238, 287710), (340, 201397), (476, 143855), (595, 115084), (1190, 57542), (2380, 28771)]