20159783978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{2357}}^1\times {\mathrm{4789}}^1$

素因数の和:7214

約数の個数: 32

約数和(自身を含む): 32529081600

約数和(自身を除く): 12369297622

約数列:

[1, 2, 19, 38, 47, 94, 893, 1786, 2357, 4714, 4789, 9578, 44783, 89566, 90991, 110779, 181982, 221558, 225083, 450166, 2104801, 4209602, 4276577, 8553154, 11287673, 22575346, 214465787, 428931574, 530520631, 1061041262, 10079891989, 20159783978]

約数ペア:

[(1, 20159783978), (2, 10079891989), (19, 1061041262), (38, 530520631), (47, 428931574), (94, 214465787), (893, 22575346), (1786, 11287673), (2357, 8553154), (4714, 4276577), (4789, 4209602), (9578, 2104801), (44783, 450166), (89566, 225083), (90991, 221558), (110779, 181982)]