20007980056

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1\times {\mathrm{1871}}^1$

素因数の和:2296

約数の個数: 64

約数和(自身を含む): 38769269760

約数和(自身を除く): 18761289704

約数列:

[1, 2, 4, 8, 67, 71, 134, 142, 268, 281, 284, 536, 562, 568, 1124, 1871, 2248, 3742, 4757, 7484, 9514, 14968, 18827, 19028, 19951, 37654, 38056, 39902, 75308, 79804, 125357, 132841, 150616, 159608, 250714, 265682, 501428, 525751, 531364, 1002856, 1051502, 1062728, 1336717, 2103004, 2673434, 4206008, 5346868, 8900347, 10693736, 17800694, 35225317, 35601388, 37328321, 70450634, 71202776, 74656642, 140901268, 149313284, 281802536, 298626568, 2500997507, 5001995014, 10003990028, 20007980056]

約数ペア:

[(1, 20007980056), (2, 10003990028), (4, 5001995014), (8, 2500997507), (67, 298626568), (71, 281802536), (134, 149313284), (142, 140901268), (268, 74656642), (281, 71202776), (284, 70450634), (536, 37328321), (562, 35601388), (568, 35225317), (1124, 17800694), (1871, 10693736), (2248, 8900347), (3742, 5346868), (4757, 4206008), (7484, 2673434), (9514, 2103004), (14968, 1336717), (18827, 1062728), (19028, 1051502), (19951, 1002856), (37654, 531364), (38056, 525751), (39902, 501428), (75308, 265682), (79804, 250714), (125357, 159608), (132841, 150616)]