77799280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{313}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 196237440

約数和(自身を除く): 118438160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 239, 260, 313, 478, 520, 626, 956, 1040, 1195, 1252, 1565, 1912, 2390, 2504, 3107, 3130, 3824, 4069, 4780, 5008, 6214, 6260, 8138, 9560, 12428, 12520, 15535, 16276, 19120, 20345, 24856, 25040, 31070, 32552, 40690, 49712, 62140, 65104, 74807, 81380, 124280, 149614, 162760, 248560, 299228, 325520, 374035, 598456, 748070, 972491, 1196912, 1496140, 1944982, 2992280, 3889964, 4862455, 5984560, 7779928, 9724910, 15559856, 19449820, 38899640, 77799280]

約数ペア:

[(1, 77799280), (2, 38899640), (4, 19449820), (5, 15559856), (8, 9724910), (10, 7779928), (13, 5984560), (16, 4862455), (20, 3889964), (26, 2992280), (40, 1944982), (52, 1496140), (65, 1196912), (80, 972491), (104, 748070), (130, 598456), (208, 374035), (239, 325520), (260, 299228), (313, 248560), (478, 162760), (520, 149614), (626, 124280), (956, 81380), (1040, 74807), (1195, 65104), (1252, 62140), (1565, 49712), (1912, 40690), (2390, 32552), (2504, 31070), (3107, 25040), (3130, 24856), (3824, 20345), (4069, 19120), (4780, 16276), (5008, 15535), (6214, 12520), (6260, 12428), (8138, 9560)]