201715970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:903

約数の個数: 48

約数和(自身を含む): 389095488

約数和(自身を除く): 187379518

約数列:

[1, 2, 5, 10, 19, 38, 71, 95, 142, 190, 355, 361, 710, 722, 787, 1349, 1574, 1805, 2698, 3610, 3935, 6745, 7870, 13490, 14953, 25631, 29906, 51262, 55877, 74765, 111754, 128155, 149530, 256310, 279385, 284107, 558770, 568214, 1061663, 1420535, 2123326, 2841070, 5308315, 10616630, 20171597, 40343194, 100857985, 201715970]

約数ペア:

[(1, 201715970), (2, 100857985), (5, 40343194), (10, 20171597), (19, 10616630), (38, 5308315), (71, 2841070), (95, 2123326), (142, 1420535), (190, 1061663), (355, 568214), (361, 558770), (710, 284107), (722, 279385), (787, 256310), (1349, 149530), (1574, 128155), (1805, 111754), (2698, 74765), (3610, 55877), (3935, 51262), (6745, 29906), (7870, 25631), (13490, 14953)]