17979928

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:224

約数の個数: 64

約数和(自身を含む): 38304000

約数和(自身を除く): 20324072

約数列:

[1, 2, 4, 8, 19, 23, 37, 38, 46, 74, 76, 92, 139, 148, 152, 184, 278, 296, 437, 556, 703, 851, 874, 1112, 1406, 1702, 1748, 2641, 2812, 3197, 3404, 3496, 5143, 5282, 5624, 6394, 6808, 10286, 10564, 12788, 16169, 20572, 21128, 25576, 32338, 41144, 60743, 64676, 97717, 118289, 121486, 129352, 195434, 236578, 242972, 390868, 473156, 485944, 781736, 946312, 2247491, 4494982, 8989964, 17979928]

約数ペア:

[(1, 17979928), (2, 8989964), (4, 4494982), (8, 2247491), (19, 946312), (23, 781736), (37, 485944), (38, 473156), (46, 390868), (74, 242972), (76, 236578), (92, 195434), (139, 129352), (148, 121486), (152, 118289), (184, 97717), (278, 64676), (296, 60743), (437, 41144), (556, 32338), (703, 25576), (851, 21128), (874, 20572), (1112, 16169), (1406, 12788), (1702, 10564), (1748, 10286), (2641, 6808), (2812, 6394), (3197, 5624), (3404, 5282), (3496, 5143)]