390981976

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{8243}}^1$

素因数の和:8285

約数の個数: 72

約数和(自身を含む): 937466460

約数和(自身を除く): 546484484

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 121, 154, 196, 242, 308, 392, 484, 539, 616, 847, 968, 1078, 1694, 2156, 3388, 4312, 5929, 6776, 8243, 11858, 16486, 23716, 32972, 47432, 57701, 65944, 90673, 115402, 181346, 230804, 362692, 403907, 461608, 634711, 725384, 807814, 997403, 1269422, 1615628, 1994806, 2538844, 3231256, 3989612, 4442977, 5077688, 6981821, 7979224, 8885954, 13963642, 17771908, 27927284, 35543816, 48872747, 55854568, 97745494, 195490988, 390981976]

約数ペア:

[(1, 390981976), (2, 195490988), (4, 97745494), (7, 55854568), (8, 48872747), (11, 35543816), (14, 27927284), (22, 17771908), (28, 13963642), (44, 8885954), (49, 7979224), (56, 6981821), (77, 5077688), (88, 4442977), (98, 3989612), (121, 3231256), (154, 2538844), (196, 1994806), (242, 1615628), (308, 1269422), (392, 997403), (484, 807814), (539, 725384), (616, 634711), (847, 461608), (968, 403907), (1078, 362692), (1694, 230804), (2156, 181346), (3388, 115402), (4312, 90673), (5929, 65944), (6776, 57701), (8243, 47432), (11858, 32972), (16486, 23716)]