19318000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{743}}^1$

素因数の和:779

約数の個数: 80

約数和(自身を含む): 50371776

約数和(自身を除く): 31053776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 650, 743, 1000, 1040, 1300, 1486, 1625, 2000, 2600, 2972, 3250, 3715, 5200, 5944, 6500, 7430, 9659, 11888, 13000, 14860, 18575, 19318, 26000, 29720, 37150, 38636, 48295, 59440, 74300, 77272, 92875, 96590, 148600, 154544, 185750, 193180, 241475, 297200, 371500, 386360, 482950, 743000, 772720, 965900, 1207375, 1486000, 1931800, 2414750, 3863600, 4829500, 9659000, 19318000]

約数ペア:

[(1, 19318000), (2, 9659000), (4, 4829500), (5, 3863600), (8, 2414750), (10, 1931800), (13, 1486000), (16, 1207375), (20, 965900), (25, 772720), (26, 743000), (40, 482950), (50, 386360), (52, 371500), (65, 297200), (80, 241475), (100, 193180), (104, 185750), (125, 154544), (130, 148600), (200, 96590), (208, 92875), (250, 77272), (260, 74300), (325, 59440), (400, 48295), (500, 38636), (520, 37150), (650, 29720), (743, 26000), (1000, 19318), (1040, 18575), (1300, 14860), (1486, 13000), (1625, 11888), (2000, 9659), (2600, 7430), (2972, 6500), (3250, 5944), (3715, 5200)]