20760320

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{331}}^1$

素因数の和:366

約数の個数: 108

約数和(自身を含む): 58020984

約数和(自身を除く): 37260664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 331, 392, 448, 490, 560, 640, 662, 784, 896, 980, 1120, 1280, 1324, 1568, 1655, 1792, 1960, 2240, 2317, 2648, 3136, 3310, 3920, 4480, 4634, 5296, 6272, 6620, 7840, 8960, 9268, 10592, 11585, 12544, 13240, 15680, 16219, 18536, 21184, 23170, 26480, 31360, 32438, 37072, 42368, 46340, 52960, 62720, 64876, 74144, 81095, 84736, 92680, 105920, 129752, 148288, 162190, 185360, 211840, 259504, 296576, 324380, 370720, 423680, 519008, 593152, 648760, 741440, 1038016, 1297520, 1482880, 2076032, 2595040, 2965760, 4152064, 5190080, 10380160, 20760320]

約数ペア:

[(1, 20760320), (2, 10380160), (4, 5190080), (5, 4152064), (7, 2965760), (8, 2595040), (10, 2076032), (14, 1482880), (16, 1297520), (20, 1038016), (28, 741440), (32, 648760), (35, 593152), (40, 519008), (49, 423680), (56, 370720), (64, 324380), (70, 296576), (80, 259504), (98, 211840), (112, 185360), (128, 162190), (140, 148288), (160, 129752), (196, 105920), (224, 92680), (245, 84736), (256, 81095), (280, 74144), (320, 64876), (331, 62720), (392, 52960), (448, 46340), (490, 42368), (560, 37072), (640, 32438), (662, 31360), (784, 26480), (896, 23170), (980, 21184), (1120, 18536), (1280, 16219), (1324, 15680), (1568, 13240), (1655, 12544), (1792, 11585), (1960, 10592), (2240, 9268), (2317, 8960), (2648, 7840), (3136, 6620), (3310, 6272), (3920, 5296), (4480, 4634)]