320567580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{499}}^1$

素因数の和:640

約数の個数: 144

約数和(自身を含む): 1009008000

約数和(自身を除く): 688440420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 83, 86, 90, 129, 166, 172, 180, 215, 249, 258, 332, 387, 415, 430, 498, 499, 516, 645, 747, 774, 830, 860, 996, 998, 1245, 1290, 1494, 1497, 1548, 1660, 1935, 1996, 2490, 2495, 2580, 2988, 2994, 3569, 3735, 3870, 4491, 4980, 4990, 5988, 7138, 7470, 7485, 7740, 8982, 9980, 10707, 14276, 14940, 14970, 17845, 17964, 21414, 21457, 22455, 29940, 32121, 35690, 41417, 42828, 42914, 44910, 53535, 64242, 64371, 71380, 82834, 85828, 89820, 107070, 107285, 124251, 128484, 128742, 160605, 165668, 193113, 207085, 214140, 214570, 248502, 257484, 321210, 321855, 372753, 386226, 414170, 429140, 497004, 621255, 642420, 643710, 745506, 772452, 828340, 965565, 1242510, 1287420, 1491012, 1780931, 1863765, 1931130, 2485020, 3561862, 3727530, 3862260, 5342793, 7123724, 7455060, 8904655, 10685586, 16028379, 17809310, 21371172, 26713965, 32056758, 35618620, 53427930, 64113516, 80141895, 106855860, 160283790, 320567580]

約数ペア:

[(1, 320567580), (2, 160283790), (3, 106855860), (4, 80141895), (5, 64113516), (6, 53427930), (9, 35618620), (10, 32056758), (12, 26713965), (15, 21371172), (18, 17809310), (20, 16028379), (30, 10685586), (36, 8904655), (43, 7455060), (45, 7123724), (60, 5342793), (83, 3862260), (86, 3727530), (90, 3561862), (129, 2485020), (166, 1931130), (172, 1863765), (180, 1780931), (215, 1491012), (249, 1287420), (258, 1242510), (332, 965565), (387, 828340), (415, 772452), (430, 745506), (498, 643710), (499, 642420), (516, 621255), (645, 497004), (747, 429140), (774, 414170), (830, 386226), (860, 372753), (996, 321855), (998, 321210), (1245, 257484), (1290, 248502), (1494, 214570), (1497, 214140), (1548, 207085), (1660, 193113), (1935, 165668), (1996, 160605), (2490, 128742), (2495, 128484), (2580, 124251), (2988, 107285), (2994, 107070), (3569, 89820), (3735, 85828), (3870, 82834), (4491, 71380), (4980, 64371), (4990, 64242), (5988, 53535), (7138, 44910), (7470, 42914), (7485, 42828), (7740, 41417), (8982, 35690), (9980, 32121), (10707, 29940), (14276, 22455), (14940, 21457), (14970, 21414), (17845, 17964)]