128437520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{83}}^1$

素因数の和:177

約数の個数: 120

約数和(自身を含む): 326604096

約数和(自身を除く): 198166576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 29, 40, 46, 58, 80, 83, 92, 115, 116, 145, 166, 184, 230, 232, 290, 332, 368, 415, 460, 464, 580, 664, 667, 830, 841, 920, 1160, 1328, 1334, 1660, 1682, 1840, 1909, 2320, 2407, 2668, 3320, 3335, 3364, 3818, 4205, 4814, 5336, 6640, 6670, 6728, 7636, 8410, 9545, 9628, 10672, 12035, 13340, 13456, 15272, 16820, 19090, 19256, 19343, 24070, 26680, 30544, 33640, 38180, 38512, 38686, 48140, 53360, 55361, 67280, 69803, 76360, 77372, 96280, 96715, 110722, 139606, 152720, 154744, 192560, 193430, 221444, 276805, 279212, 309488, 349015, 386860, 442888, 553610, 558424, 698030, 773720, 885776, 1107220, 1116848, 1396060, 1547440, 1605469, 2214440, 2792120, 3210938, 4428880, 5584240, 6421876, 8027345, 12843752, 16054690, 25687504, 32109380, 64218760, 128437520]

約数ペア:

[(1, 128437520), (2, 64218760), (4, 32109380), (5, 25687504), (8, 16054690), (10, 12843752), (16, 8027345), (20, 6421876), (23, 5584240), (29, 4428880), (40, 3210938), (46, 2792120), (58, 2214440), (80, 1605469), (83, 1547440), (92, 1396060), (115, 1116848), (116, 1107220), (145, 885776), (166, 773720), (184, 698030), (230, 558424), (232, 553610), (290, 442888), (332, 386860), (368, 349015), (415, 309488), (460, 279212), (464, 276805), (580, 221444), (664, 193430), (667, 192560), (830, 154744), (841, 152720), (920, 139606), (1160, 110722), (1328, 96715), (1334, 96280), (1660, 77372), (1682, 76360), (1840, 69803), (1909, 67280), (2320, 55361), (2407, 53360), (2668, 48140), (3320, 38686), (3335, 38512), (3364, 38180), (3818, 33640), (4205, 30544), (4814, 26680), (5336, 24070), (6640, 19343), (6670, 19256), (6728, 19090), (7636, 16820), (8410, 15272), (9545, 13456), (9628, 13340), (10672, 12035)]