20552480

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:310

約数の個数: 96

約数和(自身を含む): 53787888

約数和(自身を除く): 33235408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 41, 52, 65, 80, 82, 104, 130, 160, 164, 205, 208, 241, 260, 328, 410, 416, 482, 520, 533, 656, 820, 964, 1040, 1066, 1205, 1312, 1640, 1928, 2080, 2132, 2410, 2665, 3133, 3280, 3856, 4264, 4820, 5330, 6266, 6560, 7712, 8528, 9640, 9881, 10660, 12532, 15665, 17056, 19280, 19762, 21320, 25064, 31330, 38560, 39524, 42640, 49405, 50128, 62660, 79048, 85280, 98810, 100256, 125320, 128453, 158096, 197620, 250640, 256906, 316192, 395240, 501280, 513812, 642265, 790480, 1027624, 1284530, 1580960, 2055248, 2569060, 4110496, 5138120, 10276240, 20552480]

約数ペア:

[(1, 20552480), (2, 10276240), (4, 5138120), (5, 4110496), (8, 2569060), (10, 2055248), (13, 1580960), (16, 1284530), (20, 1027624), (26, 790480), (32, 642265), (40, 513812), (41, 501280), (52, 395240), (65, 316192), (80, 256906), (82, 250640), (104, 197620), (130, 158096), (160, 128453), (164, 125320), (205, 100256), (208, 98810), (241, 85280), (260, 79048), (328, 62660), (410, 50128), (416, 49405), (482, 42640), (520, 39524), (533, 38560), (656, 31330), (820, 25064), (964, 21320), (1040, 19762), (1066, 19280), (1205, 17056), (1312, 15665), (1640, 12532), (1928, 10660), (2080, 9881), (2132, 9640), (2410, 8528), (2665, 7712), (3133, 6560), (3280, 6266), (3856, 5330), (4264, 4820)]