20496816072

素因数分解:

$2^3\times 3^4\times {\mathrm{79}}^1\times {\mathrm{400391}}^1$

素因数の和:400488

約数の個数: 80

約数和(自身を含む): 58136918400

約数和(自身を除く): 37640102328

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 79, 81, 108, 158, 162, 216, 237, 316, 324, 474, 632, 648, 711, 948, 1422, 1896, 2133, 2844, 4266, 5688, 6399, 8532, 12798, 17064, 25596, 51192, 400391, 800782, 1201173, 1601564, 2402346, 3203128, 3603519, 4804692, 7207038, 9609384, 10810557, 14414076, 21621114, 28828152, 31630889, 32431671, 43242228, 63261778, 64863342, 86484456, 94892667, 126523556, 129726684, 189785334, 253047112, 259453368, 284678001, 379570668, 569356002, 759141336, 854034003, 1138712004, 1708068006, 2277424008, 2562102009, 3416136012, 5124204018, 6832272024, 10248408036, 20496816072]

約数ペア:

[(1, 20496816072), (2, 10248408036), (3, 6832272024), (4, 5124204018), (6, 3416136012), (8, 2562102009), (9, 2277424008), (12, 1708068006), (18, 1138712004), (24, 854034003), (27, 759141336), (36, 569356002), (54, 379570668), (72, 284678001), (79, 259453368), (81, 253047112), (108, 189785334), (158, 129726684), (162, 126523556), (216, 94892667), (237, 86484456), (316, 64863342), (324, 63261778), (474, 43242228), (632, 32431671), (648, 31630889), (711, 28828152), (948, 21621114), (1422, 14414076), (1896, 10810557), (2133, 9609384), (2844, 7207038), (4266, 4804692), (5688, 3603519), (6399, 3203128), (8532, 2402346), (12798, 1601564), (17064, 1201173), (25596, 800782), (51192, 400391)]