128255680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1847}}^1$

素因数の和:1902

約数の個数: 112

約数和(自身を含む): 360493056

約数和(自身を除く): 232237376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 868, 992, 1085, 1120, 1240, 1736, 1847, 1984, 2170, 2240, 2480, 3472, 3694, 4340, 4960, 6944, 7388, 8680, 9235, 9920, 12929, 13888, 14776, 17360, 18470, 25858, 29552, 34720, 36940, 51716, 57257, 59104, 64645, 69440, 73880, 103432, 114514, 118208, 129290, 147760, 206864, 229028, 258580, 286285, 295520, 400799, 413728, 458056, 517160, 572570, 591040, 801598, 827456, 916112, 1034320, 1145140, 1603196, 1832224, 2003995, 2068640, 2290280, 3206392, 3664448, 4007990, 4137280, 4580560, 6412784, 8015980, 9161120, 12825568, 16031960, 18322240, 25651136, 32063920, 64127840, 128255680]

約数ペア:

[(1, 128255680), (2, 64127840), (4, 32063920), (5, 25651136), (7, 18322240), (8, 16031960), (10, 12825568), (14, 9161120), (16, 8015980), (20, 6412784), (28, 4580560), (31, 4137280), (32, 4007990), (35, 3664448), (40, 3206392), (56, 2290280), (62, 2068640), (64, 2003995), (70, 1832224), (80, 1603196), (112, 1145140), (124, 1034320), (140, 916112), (155, 827456), (160, 801598), (217, 591040), (224, 572570), (248, 517160), (280, 458056), (310, 413728), (320, 400799), (434, 295520), (448, 286285), (496, 258580), (560, 229028), (620, 206864), (868, 147760), (992, 129290), (1085, 118208), (1120, 114514), (1240, 103432), (1736, 73880), (1847, 69440), (1984, 64645), (2170, 59104), (2240, 57257), (2480, 51716), (3472, 36940), (3694, 34720), (4340, 29552), (4960, 25858), (6944, 18470), (7388, 17360), (8680, 14776), (9235, 13888), (9920, 12929)]