19445060

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 42792960

約数和(自身を除く): 23347900

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 397, 620, 790, 794, 1580, 1588, 1985, 2449, 3970, 4898, 7940, 9796, 12245, 12307, 24490, 24614, 31363, 48980, 49228, 61535, 62726, 123070, 125452, 156815, 246140, 313630, 627260, 972253, 1944506, 3889012, 4861265, 9722530, 19445060]

約数ペア:

[(1, 19445060), (2, 9722530), (4, 4861265), (5, 3889012), (10, 1944506), (20, 972253), (31, 627260), (62, 313630), (79, 246140), (124, 156815), (155, 125452), (158, 123070), (310, 62726), (316, 61535), (395, 49228), (397, 48980), (620, 31363), (790, 24614), (794, 24490), (1580, 12307), (1588, 12245), (1985, 9796), (2449, 7940), (3970, 4898)]