71897505

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 127733760

約数和(自身を除く): 55836255

約数列:

[1, 3, 5, 15, 17, 43, 51, 79, 83, 85, 129, 215, 237, 249, 255, 395, 415, 645, 731, 1185, 1245, 1343, 1411, 2193, 3397, 3569, 3655, 4029, 4233, 6557, 6715, 7055, 10191, 10707, 10965, 16985, 17845, 19671, 20145, 21165, 32785, 50955, 53535, 57749, 60673, 98355, 111469, 173247, 182019, 281951, 288745, 303365, 334407, 557345, 845853, 866235, 910095, 1409755, 1672035, 4229265, 4793167, 14379501, 23965835, 71897505]

約数ペア:

[(1, 71897505), (3, 23965835), (5, 14379501), (15, 4793167), (17, 4229265), (43, 1672035), (51, 1409755), (79, 910095), (83, 866235), (85, 845853), (129, 557345), (215, 334407), (237, 303365), (249, 288745), (255, 281951), (395, 182019), (415, 173247), (645, 111469), (731, 98355), (1185, 60673), (1245, 57749), (1343, 53535), (1411, 50955), (2193, 32785), (3397, 21165), (3569, 20145), (3655, 19671), (4029, 17845), (4233, 16985), (6557, 10965), (6715, 10707), (7055, 10191)]