81818412

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 213373440

約数和(自身を除く): 131555028

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 71, 78, 83, 89, 142, 156, 166, 178, 213, 249, 267, 284, 332, 356, 426, 498, 534, 852, 923, 996, 1068, 1079, 1157, 1846, 2158, 2314, 2769, 3237, 3471, 3692, 4316, 4628, 5538, 5893, 6319, 6474, 6942, 7387, 11076, 11786, 12638, 12948, 13884, 14774, 17679, 18957, 22161, 23572, 25276, 29548, 35358, 37914, 44322, 70716, 75828, 76609, 82147, 88644, 96031, 153218, 164294, 192062, 229827, 246441, 288093, 306436, 328588, 384124, 459654, 492882, 524477, 576186, 919308, 985764, 1048954, 1152372, 1573431, 2097908, 3146862, 6293724, 6818201, 13636402, 20454603, 27272804, 40909206, 81818412]

約数ペア:

[(1, 81818412), (2, 40909206), (3, 27272804), (4, 20454603), (6, 13636402), (12, 6818201), (13, 6293724), (26, 3146862), (39, 2097908), (52, 1573431), (71, 1152372), (78, 1048954), (83, 985764), (89, 919308), (142, 576186), (156, 524477), (166, 492882), (178, 459654), (213, 384124), (249, 328588), (267, 306436), (284, 288093), (332, 246441), (356, 229827), (426, 192062), (498, 164294), (534, 153218), (852, 96031), (923, 88644), (996, 82147), (1068, 76609), (1079, 75828), (1157, 70716), (1846, 44322), (2158, 37914), (2314, 35358), (2769, 29548), (3237, 25276), (3471, 23572), (3692, 22161), (4316, 18957), (4628, 17679), (5538, 14774), (5893, 13884), (6319, 12948), (6474, 12638), (6942, 11786), (7387, 11076)]