216702980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43867}}^1$

素因数の和:43908

約数の個数: 48

約数和(自身を含む): 515887680

約数和(自身を除く): 299184700

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 43867, 87734, 175468, 219335, 438670, 570271, 833473, 877340, 1140542, 1666946, 2281084, 2851355, 3333892, 4167365, 5702710, 8334730, 10835149, 11405420, 16669460, 21670298, 43340596, 54175745, 108351490, 216702980]

約数ペア:

[(1, 216702980), (2, 108351490), (4, 54175745), (5, 43340596), (10, 21670298), (13, 16669460), (19, 11405420), (20, 10835149), (26, 8334730), (38, 5702710), (52, 4167365), (65, 3333892), (76, 2851355), (95, 2281084), (130, 1666946), (190, 1140542), (247, 877340), (260, 833473), (380, 570271), (494, 438670), (988, 219335), (1235, 175468), (2470, 87734), (4940, 43867)]