19906680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8731}}^1$

素因数の和:8764

約数の個数: 64

約数和(自身を含む): 62870400

約数和(自身を除く): 42963720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 8731, 17462, 26193, 34924, 43655, 52386, 69848, 87310, 104772, 130965, 165889, 174620, 209544, 261930, 331778, 349240, 497667, 523860, 663556, 829445, 995334, 1047720, 1327112, 1658890, 1990668, 2488335, 3317780, 3981336, 4976670, 6635560, 9953340, 19906680]

約数ペア:

[(1, 19906680), (2, 9953340), (3, 6635560), (4, 4976670), (5, 3981336), (6, 3317780), (8, 2488335), (10, 1990668), (12, 1658890), (15, 1327112), (19, 1047720), (20, 995334), (24, 829445), (30, 663556), (38, 523860), (40, 497667), (57, 349240), (60, 331778), (76, 261930), (95, 209544), (114, 174620), (120, 165889), (152, 130965), (190, 104772), (228, 87310), (285, 69848), (380, 52386), (456, 43655), (570, 34924), (760, 26193), (1140, 17462), (2280, 8731)]