278380406

素因数分解:

$2^1\times {\mathrm{17}}^3\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 455142240

約数和(自身を除く): 176761834

約数列:

[1, 2, 17, 34, 41, 82, 289, 578, 691, 697, 1382, 1394, 4913, 9826, 11747, 11849, 23494, 23698, 28331, 56662, 199699, 201433, 399398, 402866, 481627, 963254, 3394883, 6789766, 8187659, 16375318, 139190203, 278380406]

約数ペア:

[(1, 278380406), (2, 139190203), (17, 16375318), (34, 8187659), (41, 6789766), (82, 3394883), (289, 963254), (578, 481627), (691, 402866), (697, 399398), (1382, 201433), (1394, 199699), (4913, 56662), (9826, 28331), (11747, 23698), (11849, 23494)]