17878980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{42569}}^1$

素因数の和:42588

約数の個数: 48

約数和(自身を含む): 57214080

約数和(自身を除く): 39335100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 42569, 85138, 127707, 170276, 212845, 255414, 297983, 425690, 510828, 595966, 638535, 851380, 893949, 1191932, 1277070, 1489915, 1787898, 2554140, 2979830, 3575796, 4469745, 5959660, 8939490, 17878980]

約数ペア:

[(1, 17878980), (2, 8939490), (3, 5959660), (4, 4469745), (5, 3575796), (6, 2979830), (7, 2554140), (10, 1787898), (12, 1489915), (14, 1277070), (15, 1191932), (20, 893949), (21, 851380), (28, 638535), (30, 595966), (35, 510828), (42, 425690), (60, 297983), (70, 255414), (84, 212845), (105, 170276), (140, 127707), (210, 85138), (420, 42569)]