319715200

素因数分解:

$2^7\times 5^2\times 7^2\times {\mathrm{2039}}^1$

素因数の和:2077

約数の個数: 144

約数和(自身を含む): 919193400

約数和(自身を除く): 599478200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 128, 140, 160, 175, 196, 200, 224, 245, 280, 320, 350, 392, 400, 448, 490, 560, 640, 700, 784, 800, 896, 980, 1120, 1225, 1400, 1568, 1600, 1960, 2039, 2240, 2450, 2800, 3136, 3200, 3920, 4078, 4480, 4900, 5600, 6272, 7840, 8156, 9800, 10195, 11200, 14273, 15680, 16312, 19600, 20390, 22400, 28546, 31360, 32624, 39200, 40780, 50975, 57092, 65248, 71365, 78400, 81560, 99911, 101950, 114184, 130496, 142730, 156800, 163120, 199822, 203900, 228368, 260992, 285460, 326240, 356825, 399644, 407800, 456736, 499555, 570920, 652480, 713650, 799288, 815600, 913472, 999110, 1141840, 1304960, 1427300, 1598576, 1631200, 1826944, 1998220, 2283680, 2497775, 2854600, 3197152, 3262400, 3996440, 4567360, 4995550, 5709200, 6394304, 6524800, 7992880, 9134720, 9991100, 11418400, 12788608, 15985760, 19982200, 22836800, 31971520, 39964400, 45673600, 63943040, 79928800, 159857600, 319715200]

約数ペア:

[(1, 319715200), (2, 159857600), (4, 79928800), (5, 63943040), (7, 45673600), (8, 39964400), (10, 31971520), (14, 22836800), (16, 19982200), (20, 15985760), (25, 12788608), (28, 11418400), (32, 9991100), (35, 9134720), (40, 7992880), (49, 6524800), (50, 6394304), (56, 5709200), (64, 4995550), (70, 4567360), (80, 3996440), (98, 3262400), (100, 3197152), (112, 2854600), (128, 2497775), (140, 2283680), (160, 1998220), (175, 1826944), (196, 1631200), (200, 1598576), (224, 1427300), (245, 1304960), (280, 1141840), (320, 999110), (350, 913472), (392, 815600), (400, 799288), (448, 713650), (490, 652480), (560, 570920), (640, 499555), (700, 456736), (784, 407800), (800, 399644), (896, 356825), (980, 326240), (1120, 285460), (1225, 260992), (1400, 228368), (1568, 203900), (1600, 199822), (1960, 163120), (2039, 156800), (2240, 142730), (2450, 130496), (2800, 114184), (3136, 101950), (3200, 99911), (3920, 81560), (4078, 78400), (4480, 71365), (4900, 65248), (5600, 57092), (6272, 50975), (7840, 40780), (8156, 39200), (9800, 32624), (10195, 31360), (11200, 28546), (14273, 22400), (15680, 20390), (16312, 19600)]