81934280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:183

約数の個数: 128

約数和(自身を含む): 206841600

約数和(自身を除く): 124907320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 29, 37, 40, 46, 58, 74, 83, 92, 115, 116, 145, 148, 166, 184, 185, 230, 232, 290, 296, 332, 370, 415, 460, 580, 664, 667, 740, 830, 851, 920, 1073, 1160, 1334, 1480, 1660, 1702, 1909, 2146, 2407, 2668, 3071, 3320, 3335, 3404, 3818, 4255, 4292, 4814, 5336, 5365, 6142, 6670, 6808, 7636, 8510, 8584, 9545, 9628, 10730, 12035, 12284, 13340, 15272, 15355, 17020, 19090, 19256, 21460, 24070, 24568, 24679, 26680, 30710, 34040, 38180, 42920, 48140, 49358, 55361, 61420, 70633, 76360, 89059, 96280, 98716, 110722, 122840, 123395, 141266, 178118, 197432, 221444, 246790, 276805, 282532, 353165, 356236, 442888, 445295, 493580, 553610, 565064, 706330, 712472, 890590, 987160, 1107220, 1412660, 1781180, 2048357, 2214440, 2825320, 3562360, 4096714, 8193428, 10241785, 16386856, 20483570, 40967140, 81934280]

約数ペア:

[(1, 81934280), (2, 40967140), (4, 20483570), (5, 16386856), (8, 10241785), (10, 8193428), (20, 4096714), (23, 3562360), (29, 2825320), (37, 2214440), (40, 2048357), (46, 1781180), (58, 1412660), (74, 1107220), (83, 987160), (92, 890590), (115, 712472), (116, 706330), (145, 565064), (148, 553610), (166, 493580), (184, 445295), (185, 442888), (230, 356236), (232, 353165), (290, 282532), (296, 276805), (332, 246790), (370, 221444), (415, 197432), (460, 178118), (580, 141266), (664, 123395), (667, 122840), (740, 110722), (830, 98716), (851, 96280), (920, 89059), (1073, 76360), (1160, 70633), (1334, 61420), (1480, 55361), (1660, 49358), (1702, 48140), (1909, 42920), (2146, 38180), (2407, 34040), (2668, 30710), (3071, 26680), (3320, 24679), (3335, 24568), (3404, 24070), (3818, 21460), (4255, 19256), (4292, 19090), (4814, 17020), (5336, 15355), (5365, 15272), (6142, 13340), (6670, 12284), (6808, 12035), (7636, 10730), (8510, 9628), (8584, 9545)]