128285655

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{101}}^1\times {\mathrm{293}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 220951584

約数和(自身を除く): 92665929

約数列:

[1, 3, 5, 15, 17, 51, 85, 101, 255, 289, 293, 303, 505, 867, 879, 1445, 1465, 1515, 1717, 4335, 4395, 4981, 5151, 8585, 14943, 24905, 25755, 29189, 29593, 74715, 84677, 87567, 88779, 145945, 147965, 254031, 423385, 437835, 443895, 503081, 1270155, 1509243, 2515405, 7546215, 8552377, 25657131, 42761885, 128285655]

約数ペア:

[(1, 128285655), (3, 42761885), (5, 25657131), (15, 8552377), (17, 7546215), (51, 2515405), (85, 1509243), (101, 1270155), (255, 503081), (289, 443895), (293, 437835), (303, 423385), (505, 254031), (867, 147965), (879, 145945), (1445, 88779), (1465, 87567), (1515, 84677), (1717, 74715), (4335, 29593), (4395, 29189), (4981, 25755), (5151, 24905), (8585, 14943)]