20103728

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1171}}^1$

素因数の和:1245

約数の個数: 40

約数和(自身を含む): 41418480

約数和(自身を除く): 21314752

約数列:

[1, 2, 4, 8, 16, 29, 37, 58, 74, 116, 148, 232, 296, 464, 592, 1073, 1171, 2146, 2342, 4292, 4684, 8584, 9368, 17168, 18736, 33959, 43327, 67918, 86654, 135836, 173308, 271672, 346616, 543344, 693232, 1256483, 2512966, 5025932, 10051864, 20103728]

約数ペア:

[(1, 20103728), (2, 10051864), (4, 5025932), (8, 2512966), (16, 1256483), (29, 693232), (37, 543344), (58, 346616), (74, 271672), (116, 173308), (148, 135836), (232, 86654), (296, 67918), (464, 43327), (592, 33959), (1073, 18736), (1171, 17168), (2146, 9368), (2342, 8584), (4292, 4684)]