129402440

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1$

素因数の和:486

約数の個数: 64

約数和(自身を含む): 297561600

約数和(自身を除く): 168159160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 163, 178, 223, 326, 356, 445, 446, 652, 712, 815, 890, 892, 1115, 1304, 1630, 1780, 1784, 2230, 3260, 3560, 4460, 6520, 8920, 14507, 19847, 29014, 36349, 39694, 58028, 72535, 72698, 79388, 99235, 116056, 145070, 145396, 158776, 181745, 198470, 290140, 290792, 363490, 396940, 580280, 726980, 793880, 1453960, 3235061, 6470122, 12940244, 16175305, 25880488, 32350610, 64701220, 129402440]

約数ペア:

[(1, 129402440), (2, 64701220), (4, 32350610), (5, 25880488), (8, 16175305), (10, 12940244), (20, 6470122), (40, 3235061), (89, 1453960), (163, 793880), (178, 726980), (223, 580280), (326, 396940), (356, 363490), (445, 290792), (446, 290140), (652, 198470), (712, 181745), (815, 158776), (890, 145396), (892, 145070), (1115, 116056), (1304, 99235), (1630, 79388), (1780, 72698), (1784, 72535), (2230, 58028), (3260, 39694), (3560, 36349), (4460, 29014), (6520, 19847), (8920, 14507)]