54887980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12647}}^1$

素因数の和:12694

約数の個数: 48

約数和(自身を含む): 135991296

約数和(自身を除く): 81103316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 12647, 25294, 50588, 63235, 88529, 126470, 177058, 252940, 354116, 392057, 442645, 784114, 885290, 1568228, 1770580, 1960285, 2744399, 3920570, 5488798, 7841140, 10977596, 13721995, 27443990, 54887980]

約数ペア:

[(1, 54887980), (2, 27443990), (4, 13721995), (5, 10977596), (7, 7841140), (10, 5488798), (14, 3920570), (20, 2744399), (28, 1960285), (31, 1770580), (35, 1568228), (62, 885290), (70, 784114), (124, 442645), (140, 392057), (155, 354116), (217, 252940), (310, 177058), (434, 126470), (620, 88529), (868, 63235), (1085, 50588), (2170, 25294), (4340, 12647)]