18984400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1531}}^1$

素因数の和:1580

約数の個数: 60

約数和(自身を含む): 47112064

約数和(自身を除く): 28127664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1531, 1550, 2480, 3062, 3100, 6124, 6200, 7655, 12248, 12400, 15310, 24496, 30620, 38275, 47461, 61240, 76550, 94922, 122480, 153100, 189844, 237305, 306200, 379688, 474610, 612400, 759376, 949220, 1186525, 1898440, 2373050, 3796880, 4746100, 9492200, 18984400]

約数ペア:

[(1, 18984400), (2, 9492200), (4, 4746100), (5, 3796880), (8, 2373050), (10, 1898440), (16, 1186525), (20, 949220), (25, 759376), (31, 612400), (40, 474610), (50, 379688), (62, 306200), (80, 237305), (100, 189844), (124, 153100), (155, 122480), (200, 94922), (248, 76550), (310, 61240), (400, 47461), (496, 38275), (620, 30620), (775, 24496), (1240, 15310), (1531, 12400), (1550, 12248), (2480, 7655), (3062, 6200), (3100, 6124)]