71491980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{24317}}^1$

素因数の和:24343

約数の個数: 72

約数和(自身を含む): 232869168

約数和(自身を除く): 161377188

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 24317, 48634, 72951, 97268, 121585, 145902, 170219, 243170, 291804, 340438, 364755, 486340, 510657, 680876, 729510, 851095, 1021314, 1191533, 1459020, 1702190, 2042628, 2383066, 2553285, 3404380, 3574599, 4766132, 5106570, 5957665, 7149198, 10213140, 11915330, 14298396, 17872995, 23830660, 35745990, 71491980]

約数ペア:

[(1, 71491980), (2, 35745990), (3, 23830660), (4, 17872995), (5, 14298396), (6, 11915330), (7, 10213140), (10, 7149198), (12, 5957665), (14, 5106570), (15, 4766132), (20, 3574599), (21, 3404380), (28, 2553285), (30, 2383066), (35, 2042628), (42, 1702190), (49, 1459020), (60, 1191533), (70, 1021314), (84, 851095), (98, 729510), (105, 680876), (140, 510657), (147, 486340), (196, 364755), (210, 340438), (245, 291804), (294, 243170), (420, 170219), (490, 145902), (588, 121585), (735, 97268), (980, 72951), (1470, 48634), (2940, 24317)]