306639100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{811}}^1$

素因数の和:1043

約数の個数: 72

約数和(自身を含む): 704816000

約数和(自身を除く): 398176900

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 199, 380, 398, 475, 796, 811, 950, 995, 1622, 1900, 1990, 3244, 3781, 3980, 4055, 4975, 7562, 8110, 9950, 15124, 15409, 16220, 18905, 19900, 20275, 30818, 37810, 40550, 61636, 75620, 77045, 81100, 94525, 154090, 161389, 189050, 308180, 322778, 378100, 385225, 645556, 770450, 806945, 1540900, 1613890, 3066391, 3227780, 4034725, 6132782, 8069450, 12265564, 15331955, 16138900, 30663910, 61327820, 76659775, 153319550, 306639100]

約数ペア:

[(1, 306639100), (2, 153319550), (4, 76659775), (5, 61327820), (10, 30663910), (19, 16138900), (20, 15331955), (25, 12265564), (38, 8069450), (50, 6132782), (76, 4034725), (95, 3227780), (100, 3066391), (190, 1613890), (199, 1540900), (380, 806945), (398, 770450), (475, 645556), (796, 385225), (811, 378100), (950, 322778), (995, 308180), (1622, 189050), (1900, 161389), (1990, 154090), (3244, 94525), (3781, 81100), (3980, 77045), (4055, 75620), (4975, 61636), (7562, 40550), (8110, 37810), (9950, 30818), (15124, 20275), (15409, 19900), (16220, 18905)]