648775520

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2113}}^1$

素因数の和:2248

約数の個数: 96

約数和(自身を含む): 1630147680

約数和(自身を除く): 981372160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 101, 152, 160, 190, 202, 304, 380, 404, 505, 608, 760, 808, 1010, 1520, 1616, 1919, 2020, 2113, 3040, 3232, 3838, 4040, 4226, 7676, 8080, 8452, 9595, 10565, 15352, 16160, 16904, 19190, 21130, 30704, 33808, 38380, 40147, 42260, 61408, 67616, 76760, 80294, 84520, 153520, 160588, 169040, 200735, 213413, 307040, 321176, 338080, 401470, 426826, 642352, 802940, 853652, 1067065, 1284704, 1605880, 1707304, 2134130, 3211760, 3414608, 4054847, 4268260, 6423520, 6829216, 8109694, 8536520, 16219388, 17073040, 20274235, 32438776, 34146080, 40548470, 64877552, 81096940, 129755104, 162193880, 324387760, 648775520]

約数ペア:

[(1, 648775520), (2, 324387760), (4, 162193880), (5, 129755104), (8, 81096940), (10, 64877552), (16, 40548470), (19, 34146080), (20, 32438776), (32, 20274235), (38, 17073040), (40, 16219388), (76, 8536520), (80, 8109694), (95, 6829216), (101, 6423520), (152, 4268260), (160, 4054847), (190, 3414608), (202, 3211760), (304, 2134130), (380, 1707304), (404, 1605880), (505, 1284704), (608, 1067065), (760, 853652), (808, 802940), (1010, 642352), (1520, 426826), (1616, 401470), (1919, 338080), (2020, 321176), (2113, 307040), (3040, 213413), (3232, 200735), (3838, 169040), (4040, 160588), (4226, 153520), (7676, 84520), (8080, 80294), (8452, 76760), (9595, 67616), (10565, 61408), (15352, 42260), (16160, 40147), (16904, 38380), (19190, 33808), (21130, 30704)]