261603550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{373}}^1$

素因数の和:494

約数の個数: 72

約数和(自身を含む): 534668904

約数和(自身を除く): 273065354

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 83, 130, 166, 169, 325, 338, 373, 415, 650, 746, 830, 845, 1079, 1690, 1865, 2075, 2158, 3730, 4150, 4225, 4849, 5395, 8450, 9325, 9698, 10790, 14027, 18650, 24245, 26975, 28054, 30959, 48490, 53950, 61918, 63037, 70135, 121225, 126074, 140270, 154795, 242450, 309590, 315185, 350675, 402467, 630370, 701350, 773975, 804934, 1547950, 1575925, 2012335, 3151850, 4024670, 5232071, 10061675, 10464142, 20123350, 26160355, 52320710, 130801775, 261603550]

約数ペア:

[(1, 261603550), (2, 130801775), (5, 52320710), (10, 26160355), (13, 20123350), (25, 10464142), (26, 10061675), (50, 5232071), (65, 4024670), (83, 3151850), (130, 2012335), (166, 1575925), (169, 1547950), (325, 804934), (338, 773975), (373, 701350), (415, 630370), (650, 402467), (746, 350675), (830, 315185), (845, 309590), (1079, 242450), (1690, 154795), (1865, 140270), (2075, 126074), (2158, 121225), (3730, 70135), (4150, 63037), (4225, 61918), (4849, 53950), (5395, 48490), (8450, 30959), (9325, 28054), (9698, 26975), (10790, 24245), (14027, 18650)]