20836427596

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{197}}^1\times {\mathrm{823}}^1$

素因数の和:1151

約数の個数: 72

約数和(自身を含む): 39161374560

約数和(自身を除く): 18324946964

約数列:

[1, 2, 4, 19, 38, 76, 89, 178, 197, 356, 361, 394, 722, 788, 823, 1444, 1646, 1691, 3292, 3382, 3743, 6764, 7486, 14972, 15637, 17533, 31274, 32129, 35066, 62548, 64258, 70132, 71117, 73247, 128516, 142234, 146494, 162131, 284468, 292988, 297103, 324262, 333127, 594206, 648524, 666254, 1188412, 1332508, 1391693, 2783386, 3080489, 5566772, 6160978, 6329413, 12321956, 12658826, 14429659, 25317652, 26442167, 28859318, 52884334, 57718636, 58529291, 105768668, 117058582, 234117164, 274163521, 548327042, 1096654084, 5209106899, 10418213798, 20836427596]

約数ペア:

[(1, 20836427596), (2, 10418213798), (4, 5209106899), (19, 1096654084), (38, 548327042), (76, 274163521), (89, 234117164), (178, 117058582), (197, 105768668), (356, 58529291), (361, 57718636), (394, 52884334), (722, 28859318), (788, 26442167), (823, 25317652), (1444, 14429659), (1646, 12658826), (1691, 12321956), (3292, 6329413), (3382, 6160978), (3743, 5566772), (6764, 3080489), (7486, 2783386), (14972, 1391693), (15637, 1332508), (17533, 1188412), (31274, 666254), (32129, 648524), (35066, 594206), (62548, 333127), (64258, 324262), (70132, 297103), (71117, 292988), (73247, 284468), (128516, 162131), (142234, 146494)]