19273940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4441}}^1$

素因数の和:4488

約数の個数: 48

約数和(自身を含む): 47760384

約数和(自身を除く): 28486444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 4441, 8882, 17764, 22205, 31087, 44410, 62174, 88820, 124348, 137671, 155435, 275342, 310870, 550684, 621740, 688355, 963697, 1376710, 1927394, 2753420, 3854788, 4818485, 9636970, 19273940]

約数ペア:

[(1, 19273940), (2, 9636970), (4, 4818485), (5, 3854788), (7, 2753420), (10, 1927394), (14, 1376710), (20, 963697), (28, 688355), (31, 621740), (35, 550684), (62, 310870), (70, 275342), (124, 155435), (140, 137671), (155, 124348), (217, 88820), (310, 62174), (434, 44410), (620, 31087), (868, 22205), (1085, 17764), (2170, 8882), (4340, 4441)]