55777760

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^2\times {\mathrm{659}}^1$

素因数の和:720

約数の個数: 72

約数和(自身を含む): 137962440

約数和(自身を除く): 82184680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 529, 659, 736, 920, 1058, 1318, 1840, 2116, 2636, 2645, 3295, 3680, 4232, 5272, 5290, 6590, 8464, 10544, 10580, 13180, 15157, 16928, 21088, 21160, 26360, 30314, 42320, 52720, 60628, 75785, 84640, 105440, 121256, 151570, 242512, 303140, 348611, 485024, 606280, 697222, 1212560, 1394444, 1743055, 2425120, 2788888, 3486110, 5577776, 6972220, 11155552, 13944440, 27888880, 55777760]

約数ペア:

[(1, 55777760), (2, 27888880), (4, 13944440), (5, 11155552), (8, 6972220), (10, 5577776), (16, 3486110), (20, 2788888), (23, 2425120), (32, 1743055), (40, 1394444), (46, 1212560), (80, 697222), (92, 606280), (115, 485024), (160, 348611), (184, 303140), (230, 242512), (368, 151570), (460, 121256), (529, 105440), (659, 84640), (736, 75785), (920, 60628), (1058, 52720), (1318, 42320), (1840, 30314), (2116, 26360), (2636, 21160), (2645, 21088), (3295, 16928), (3680, 15157), (4232, 13180), (5272, 10580), (5290, 10544), (6590, 8464)]