156908780

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:376

約数の個数: 96

約数和(自身を含む): 390096000

約数和(自身を除く): 233187220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 257, 343, 356, 445, 490, 514, 623, 686, 890, 980, 1028, 1246, 1285, 1372, 1715, 1780, 1799, 2492, 2570, 3115, 3430, 3598, 4361, 5140, 6230, 6860, 7196, 8722, 8995, 12460, 12593, 17444, 17990, 21805, 22873, 25186, 30527, 35980, 43610, 45746, 50372, 61054, 62965, 87220, 88151, 91492, 114365, 122108, 125930, 152635, 160111, 176302, 228730, 251860, 305270, 320222, 352604, 440755, 457460, 610540, 640444, 800555, 881510, 1120777, 1601110, 1763020, 2241554, 3202220, 4483108, 5603885, 7845439, 11207770, 15690878, 22415540, 31381756, 39227195, 78454390, 156908780]

約数ペア:

[(1, 156908780), (2, 78454390), (4, 39227195), (5, 31381756), (7, 22415540), (10, 15690878), (14, 11207770), (20, 7845439), (28, 5603885), (35, 4483108), (49, 3202220), (70, 2241554), (89, 1763020), (98, 1601110), (140, 1120777), (178, 881510), (196, 800555), (245, 640444), (257, 610540), (343, 457460), (356, 440755), (445, 352604), (490, 320222), (514, 305270), (623, 251860), (686, 228730), (890, 176302), (980, 160111), (1028, 152635), (1246, 125930), (1285, 122108), (1372, 114365), (1715, 91492), (1780, 88151), (1799, 87220), (2492, 62965), (2570, 61054), (3115, 50372), (3430, 45746), (3598, 43610), (4361, 35980), (5140, 30527), (6230, 25186), (6860, 22873), (7196, 21805), (8722, 17990), (8995, 17444), (12460, 12593)]