172801720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1637}}^1$

素因数の和:1697

約数の個数: 128

約数和(自身を含む): 495331200

約数和(自身を除く): 322529480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 29, 35, 40, 52, 56, 58, 65, 70, 91, 104, 116, 130, 140, 145, 182, 203, 232, 260, 280, 290, 364, 377, 406, 455, 520, 580, 728, 754, 812, 910, 1015, 1160, 1508, 1624, 1637, 1820, 1885, 2030, 2639, 3016, 3274, 3640, 3770, 4060, 5278, 6548, 7540, 8120, 8185, 10556, 11459, 13096, 13195, 15080, 16370, 21112, 21281, 22918, 26390, 32740, 42562, 45836, 47473, 52780, 57295, 65480, 85124, 91672, 94946, 105560, 106405, 114590, 148967, 170248, 189892, 212810, 229180, 237365, 297934, 332311, 379784, 425620, 458360, 474730, 595868, 617149, 664622, 744835, 851240, 949460, 1191736, 1234298, 1329244, 1489670, 1661555, 1898920, 2468596, 2658488, 2979340, 3085745, 3323110, 4320043, 4937192, 5958680, 6171490, 6646220, 8640086, 12342980, 13292440, 17280172, 21600215, 24685960, 34560344, 43200430, 86400860, 172801720]

約数ペア:

[(1, 172801720), (2, 86400860), (4, 43200430), (5, 34560344), (7, 24685960), (8, 21600215), (10, 17280172), (13, 13292440), (14, 12342980), (20, 8640086), (26, 6646220), (28, 6171490), (29, 5958680), (35, 4937192), (40, 4320043), (52, 3323110), (56, 3085745), (58, 2979340), (65, 2658488), (70, 2468596), (91, 1898920), (104, 1661555), (116, 1489670), (130, 1329244), (140, 1234298), (145, 1191736), (182, 949460), (203, 851240), (232, 744835), (260, 664622), (280, 617149), (290, 595868), (364, 474730), (377, 458360), (406, 425620), (455, 379784), (520, 332311), (580, 297934), (728, 237365), (754, 229180), (812, 212810), (910, 189892), (1015, 170248), (1160, 148967), (1508, 114590), (1624, 106405), (1637, 105560), (1820, 94946), (1885, 91672), (2030, 85124), (2639, 65480), (3016, 57295), (3274, 52780), (3640, 47473), (3770, 45836), (4060, 42562), (5278, 32740), (6548, 26390), (7540, 22918), (8120, 21281), (8185, 21112), (10556, 16370), (11459, 15080), (13096, 13195)]