80944720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:428

約数の個数: 80

約数和(自身を含む): 196558848

約数和(自身を除く): 115614128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 127, 155, 248, 254, 257, 310, 496, 508, 514, 620, 635, 1016, 1028, 1240, 1270, 1285, 2032, 2056, 2480, 2540, 2570, 3937, 4112, 5080, 5140, 7874, 7967, 10160, 10280, 15748, 15934, 19685, 20560, 31496, 31868, 32639, 39370, 39835, 62992, 63736, 65278, 78740, 79670, 127472, 130556, 157480, 159340, 163195, 261112, 314960, 318680, 326390, 522224, 637360, 652780, 1011809, 1305560, 2023618, 2611120, 4047236, 5059045, 8094472, 10118090, 16188944, 20236180, 40472360, 80944720]

約数ペア:

[(1, 80944720), (2, 40472360), (4, 20236180), (5, 16188944), (8, 10118090), (10, 8094472), (16, 5059045), (20, 4047236), (31, 2611120), (40, 2023618), (62, 1305560), (80, 1011809), (124, 652780), (127, 637360), (155, 522224), (248, 326390), (254, 318680), (257, 314960), (310, 261112), (496, 163195), (508, 159340), (514, 157480), (620, 130556), (635, 127472), (1016, 79670), (1028, 78740), (1240, 65278), (1270, 63736), (1285, 62992), (2032, 39835), (2056, 39370), (2480, 32639), (2540, 31868), (2570, 31496), (3937, 20560), (4112, 19685), (5080, 15934), (5140, 15748), (7874, 10280), (7967, 10160)]