28851890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 58973184

約数和(自身を除く): 30121294

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 47, 85, 94, 115, 157, 170, 230, 235, 314, 391, 470, 782, 785, 799, 1081, 1570, 1598, 1955, 2162, 2669, 3611, 3910, 3995, 5338, 5405, 7222, 7379, 7990, 10810, 13345, 14758, 18055, 18377, 26690, 36110, 36754, 36895, 61387, 73790, 91885, 122774, 125443, 169717, 183770, 250886, 306935, 339434, 613870, 627215, 848585, 1254430, 1697170, 2885189, 5770378, 14425945, 28851890]

約数ペア:

[(1, 28851890), (2, 14425945), (5, 5770378), (10, 2885189), (17, 1697170), (23, 1254430), (34, 848585), (46, 627215), (47, 613870), (85, 339434), (94, 306935), (115, 250886), (157, 183770), (170, 169717), (230, 125443), (235, 122774), (314, 91885), (391, 73790), (470, 61387), (782, 36895), (785, 36754), (799, 36110), (1081, 26690), (1570, 18377), (1598, 18055), (1955, 14758), (2162, 13345), (2669, 10810), (3611, 7990), (3910, 7379), (3995, 7222), (5338, 5405)]