261293916

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{761}}^1$

素因数の和:883

約数の個数: 96

約数和(自身を含む): 688214016

約数和(自身を除く): 426920100

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 71, 78, 93, 124, 142, 156, 186, 213, 284, 372, 403, 426, 761, 806, 852, 923, 1209, 1522, 1612, 1846, 2201, 2283, 2418, 2769, 3044, 3692, 4402, 4566, 4836, 5538, 6603, 8804, 9132, 9893, 11076, 13206, 19786, 23591, 26412, 28613, 29679, 39572, 47182, 54031, 57226, 59358, 70773, 85839, 94364, 108062, 114452, 118716, 141546, 162093, 171678, 216124, 283092, 306683, 324186, 343356, 613366, 648372, 702403, 920049, 1226732, 1404806, 1674961, 1840098, 2107209, 2809612, 3349922, 3680196, 4214418, 5024883, 6699844, 8428836, 10049766, 20099532, 21774493, 43548986, 65323479, 87097972, 130646958, 261293916]

約数ペア:

[(1, 261293916), (2, 130646958), (3, 87097972), (4, 65323479), (6, 43548986), (12, 21774493), (13, 20099532), (26, 10049766), (31, 8428836), (39, 6699844), (52, 5024883), (62, 4214418), (71, 3680196), (78, 3349922), (93, 2809612), (124, 2107209), (142, 1840098), (156, 1674961), (186, 1404806), (213, 1226732), (284, 920049), (372, 702403), (403, 648372), (426, 613366), (761, 343356), (806, 324186), (852, 306683), (923, 283092), (1209, 216124), (1522, 171678), (1612, 162093), (1846, 141546), (2201, 118716), (2283, 114452), (2418, 108062), (2769, 94364), (3044, 85839), (3692, 70773), (4402, 59358), (4566, 57226), (4836, 54031), (5538, 47182), (6603, 39572), (8804, 29679), (9132, 28613), (9893, 26412), (11076, 23591), (13206, 19786)]