217907950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{523}}^1\times {\mathrm{641}}^1$

素因数の和:1189

約数の個数: 48

約数和(自身を含む): 438003216

約数和(自身を除く): 220095266

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 523, 641, 650, 1046, 1282, 2615, 3205, 5230, 6410, 6799, 8333, 13075, 13598, 16025, 16666, 26150, 32050, 33995, 41665, 67990, 83330, 169975, 208325, 335243, 339950, 416650, 670486, 1676215, 3352430, 4358159, 8381075, 8716318, 16762150, 21790795, 43581590, 108953975, 217907950]

約数ペア:

[(1, 217907950), (2, 108953975), (5, 43581590), (10, 21790795), (13, 16762150), (25, 8716318), (26, 8381075), (50, 4358159), (65, 3352430), (130, 1676215), (325, 670486), (523, 416650), (641, 339950), (650, 335243), (1046, 208325), (1282, 169975), (2615, 83330), (3205, 67990), (5230, 41665), (6410, 33995), (6799, 32050), (8333, 26150), (13075, 16666), (13598, 16025)]