291020655

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{7517}}^1$

素因数の和:7643

約数の個数: 32

約数和(自身を含む): 487166400

約数和(自身を除く): 196145745

約数列:

[1, 3, 5, 15, 29, 87, 89, 145, 267, 435, 445, 1335, 2581, 7517, 7743, 12905, 22551, 37585, 38715, 112755, 217993, 653979, 669013, 1089965, 2007039, 3269895, 3345065, 10035195, 19401377, 58204131, 97006885, 291020655]

約数ペア:

[(1, 291020655), (3, 97006885), (5, 58204131), (15, 19401377), (29, 10035195), (87, 3345065), (89, 3269895), (145, 2007039), (267, 1089965), (435, 669013), (445, 653979), (1335, 217993), (2581, 112755), (7517, 38715), (7743, 37585), (12905, 22551)]