51161680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{347}}^1$

素因数の和:476

約数の個数: 80

約数和(自身を含む): 126866880

約数和(自身を除く): 75705200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 97, 152, 190, 194, 304, 347, 380, 388, 485, 694, 760, 776, 970, 1388, 1520, 1552, 1735, 1843, 1940, 2776, 3470, 3686, 3880, 5552, 6593, 6940, 7372, 7760, 9215, 13186, 13880, 14744, 18430, 26372, 27760, 29488, 32965, 33659, 36860, 52744, 65930, 67318, 73720, 105488, 131860, 134636, 147440, 168295, 263720, 269272, 336590, 527440, 538544, 639521, 673180, 1279042, 1346360, 2558084, 2692720, 3197605, 5116168, 6395210, 10232336, 12790420, 25580840, 51161680]

約数ペア:

[(1, 51161680), (2, 25580840), (4, 12790420), (5, 10232336), (8, 6395210), (10, 5116168), (16, 3197605), (19, 2692720), (20, 2558084), (38, 1346360), (40, 1279042), (76, 673180), (80, 639521), (95, 538544), (97, 527440), (152, 336590), (190, 269272), (194, 263720), (304, 168295), (347, 147440), (380, 134636), (388, 131860), (485, 105488), (694, 73720), (760, 67318), (776, 65930), (970, 52744), (1388, 36860), (1520, 33659), (1552, 32965), (1735, 29488), (1843, 27760), (1940, 26372), (2776, 18430), (3470, 14744), (3686, 13880), (3880, 13186), (5552, 9215), (6593, 7760), (6940, 7372)]