20123892464

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1224677}}^1$

素因数の和:1224777

約数の個数: 40

約数和(自身を含む): 42520820160

約数和(自身を除く): 22396927696

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 79, 104, 158, 208, 316, 632, 1027, 1264, 2054, 4108, 8216, 16432, 1224677, 2449354, 4898708, 9797416, 15920801, 19594832, 31841602, 63683204, 96749483, 127366408, 193498966, 254732816, 386997932, 773995864, 1257743279, 1547991728, 2515486558, 5030973116, 10061946232, 20123892464]

約数ペア:

[(1, 20123892464), (2, 10061946232), (4, 5030973116), (8, 2515486558), (13, 1547991728), (16, 1257743279), (26, 773995864), (52, 386997932), (79, 254732816), (104, 193498966), (158, 127366408), (208, 96749483), (316, 63683204), (632, 31841602), (1027, 19594832), (1264, 15920801), (2054, 9797416), (4108, 4898708), (8216, 2449354), (16432, 1224677)]