28420480

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^2\times {\mathrm{367}}^1$

素因数の和:408

約数の個数: 96

約数和(自身を含む): 74884320

約数和(自身を除く): 46463840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 128, 160, 176, 220, 242, 320, 352, 367, 440, 484, 605, 640, 704, 734, 880, 968, 1210, 1408, 1468, 1760, 1835, 1936, 2420, 2936, 3520, 3670, 3872, 4037, 4840, 5872, 7040, 7340, 7744, 8074, 9680, 11744, 14680, 15488, 16148, 19360, 20185, 23488, 29360, 32296, 38720, 40370, 44407, 46976, 58720, 64592, 77440, 80740, 88814, 117440, 129184, 161480, 177628, 222035, 234880, 258368, 322960, 355256, 444070, 516736, 645920, 710512, 888140, 1291840, 1421024, 1776280, 2583680, 2842048, 3552560, 5684096, 7105120, 14210240, 28420480]

約数ペア:

[(1, 28420480), (2, 14210240), (4, 7105120), (5, 5684096), (8, 3552560), (10, 2842048), (11, 2583680), (16, 1776280), (20, 1421024), (22, 1291840), (32, 888140), (40, 710512), (44, 645920), (55, 516736), (64, 444070), (80, 355256), (88, 322960), (110, 258368), (121, 234880), (128, 222035), (160, 177628), (176, 161480), (220, 129184), (242, 117440), (320, 88814), (352, 80740), (367, 77440), (440, 64592), (484, 58720), (605, 46976), (640, 44407), (704, 40370), (734, 38720), (880, 32296), (968, 29360), (1210, 23488), (1408, 20185), (1468, 19360), (1760, 16148), (1835, 15488), (1936, 14680), (2420, 11744), (2936, 9680), (3520, 8074), (3670, 7744), (3872, 7340), (4037, 7040), (4840, 5872)]