20823040

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{83}}^1$

素因数の和:122

約数の個数: 132

約数和(自身を含む): 58806216

約数和(自身を除く): 37983176

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 83, 98, 112, 128, 140, 160, 166, 196, 224, 245, 256, 280, 320, 332, 392, 415, 448, 490, 512, 560, 581, 640, 664, 784, 830, 896, 980, 1024, 1120, 1162, 1280, 1328, 1568, 1660, 1792, 1960, 2240, 2324, 2560, 2656, 2905, 3136, 3320, 3584, 3920, 4067, 4480, 4648, 5120, 5312, 5810, 6272, 6640, 7168, 7840, 8134, 8960, 9296, 10624, 11620, 12544, 13280, 15680, 16268, 17920, 18592, 20335, 21248, 23240, 25088, 26560, 31360, 32536, 35840, 37184, 40670, 42496, 46480, 50176, 53120, 62720, 65072, 74368, 81340, 84992, 92960, 106240, 125440, 130144, 148736, 162680, 185920, 212480, 250880, 260288, 297472, 325360, 371840, 424960, 520576, 594944, 650720, 743680, 1041152, 1301440, 1487360, 2082304, 2602880, 2974720, 4164608, 5205760, 10411520, 20823040]

約数ペア:

[(1, 20823040), (2, 10411520), (4, 5205760), (5, 4164608), (7, 2974720), (8, 2602880), (10, 2082304), (14, 1487360), (16, 1301440), (20, 1041152), (28, 743680), (32, 650720), (35, 594944), (40, 520576), (49, 424960), (56, 371840), (64, 325360), (70, 297472), (80, 260288), (83, 250880), (98, 212480), (112, 185920), (128, 162680), (140, 148736), (160, 130144), (166, 125440), (196, 106240), (224, 92960), (245, 84992), (256, 81340), (280, 74368), (320, 65072), (332, 62720), (392, 53120), (415, 50176), (448, 46480), (490, 42496), (512, 40670), (560, 37184), (581, 35840), (640, 32536), (664, 31360), (784, 26560), (830, 25088), (896, 23240), (980, 21248), (1024, 20335), (1120, 18592), (1162, 17920), (1280, 16268), (1328, 15680), (1568, 13280), (1660, 12544), (1792, 11620), (1960, 10624), (2240, 9296), (2324, 8960), (2560, 8134), (2656, 7840), (2905, 7168), (3136, 6640), (3320, 6272), (3584, 5810), (3920, 5312), (4067, 5120), (4480, 4648)]