78859120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1789}}^1$

素因数の和:1850

約数の個数: 80

約数和(自身を含む): 199764000

約数和(自身を除く): 120904880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 190, 232, 290, 304, 380, 464, 551, 580, 760, 1102, 1160, 1520, 1789, 2204, 2320, 2755, 3578, 4408, 5510, 7156, 8816, 8945, 11020, 14312, 17890, 22040, 28624, 33991, 35780, 44080, 51881, 67982, 71560, 103762, 135964, 143120, 169955, 207524, 259405, 271928, 339910, 415048, 518810, 543856, 679820, 830096, 985739, 1037620, 1359640, 1971478, 2075240, 2719280, 3942956, 4150480, 4928695, 7885912, 9857390, 15771824, 19714780, 39429560, 78859120]

約数ペア:

[(1, 78859120), (2, 39429560), (4, 19714780), (5, 15771824), (8, 9857390), (10, 7885912), (16, 4928695), (19, 4150480), (20, 3942956), (29, 2719280), (38, 2075240), (40, 1971478), (58, 1359640), (76, 1037620), (80, 985739), (95, 830096), (116, 679820), (145, 543856), (152, 518810), (190, 415048), (232, 339910), (290, 271928), (304, 259405), (380, 207524), (464, 169955), (551, 143120), (580, 135964), (760, 103762), (1102, 71560), (1160, 67982), (1520, 51881), (1789, 44080), (2204, 35780), (2320, 33991), (2755, 28624), (3578, 22040), (4408, 17890), (5510, 14312), (7156, 11020), (8816, 8945)]