19417760

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{773}}^1$

素因数の和:945

約数の個数: 48

約数和(自身を含む): 46226376

約数和(自身を除く): 26808616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 314, 628, 773, 785, 1256, 1546, 1570, 2512, 3092, 3140, 3865, 5024, 6184, 6280, 7730, 12368, 12560, 15460, 24736, 25120, 30920, 61840, 121361, 123680, 242722, 485444, 606805, 970888, 1213610, 1941776, 2427220, 3883552, 4854440, 9708880, 19417760]

約数ペア:

[(1, 19417760), (2, 9708880), (4, 4854440), (5, 3883552), (8, 2427220), (10, 1941776), (16, 1213610), (20, 970888), (32, 606805), (40, 485444), (80, 242722), (157, 123680), (160, 121361), (314, 61840), (628, 30920), (773, 25120), (785, 24736), (1256, 15460), (1546, 12560), (1570, 12368), (2512, 7730), (3092, 6280), (3140, 6184), (3865, 5024)]