19854540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1511}}^1$

素因数の和:1599

約数の個数: 72

約数和(自身を含む): 61090848

約数和(自身を除く): 41236308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 292, 365, 438, 657, 730, 876, 1095, 1314, 1460, 1511, 2190, 2628, 3022, 3285, 4380, 4533, 6044, 6570, 7555, 9066, 13140, 13599, 15110, 18132, 22665, 27198, 30220, 45330, 54396, 67995, 90660, 110303, 135990, 220606, 271980, 330909, 441212, 551515, 661818, 992727, 1103030, 1323636, 1654545, 1985454, 2206060, 3309090, 3970908, 4963635, 6618180, 9927270, 19854540]

約数ペア:

[(1, 19854540), (2, 9927270), (3, 6618180), (4, 4963635), (5, 3970908), (6, 3309090), (9, 2206060), (10, 1985454), (12, 1654545), (15, 1323636), (18, 1103030), (20, 992727), (30, 661818), (36, 551515), (45, 441212), (60, 330909), (73, 271980), (90, 220606), (146, 135990), (180, 110303), (219, 90660), (292, 67995), (365, 54396), (438, 45330), (657, 30220), (730, 27198), (876, 22665), (1095, 18132), (1314, 15110), (1460, 13599), (1511, 13140), (2190, 9066), (2628, 7555), (3022, 6570), (3285, 6044), (4380, 4533)]