123205120

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:208

約数の個数: 160

約数和(自身を含む): 331452000

約数和(自身を除く): 208246880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 128, 136, 149, 152, 160, 170, 190, 256, 272, 298, 304, 320, 323, 340, 380, 512, 544, 596, 608, 640, 646, 680, 745, 760, 1088, 1192, 1216, 1280, 1292, 1360, 1490, 1520, 1615, 2176, 2384, 2432, 2533, 2560, 2584, 2720, 2831, 2980, 3040, 3230, 4352, 4768, 4864, 5066, 5168, 5440, 5662, 5960, 6080, 6460, 8704, 9536, 9728, 10132, 10336, 10880, 11324, 11920, 12160, 12665, 12920, 14155, 19072, 20264, 20672, 21760, 22648, 23840, 24320, 25330, 25840, 28310, 38144, 40528, 41344, 43520, 45296, 47680, 48127, 48640, 50660, 51680, 56620, 76288, 81056, 82688, 90592, 95360, 96254, 101320, 103360, 113240, 162112, 165376, 181184, 190720, 192508, 202640, 206720, 226480, 240635, 324224, 362368, 381440, 385016, 405280, 413440, 452960, 481270, 648448, 724736, 770032, 810560, 826880, 905920, 962540, 1296896, 1449472, 1540064, 1621120, 1811840, 1925080, 3080128, 3242240, 3623680, 3850160, 6160256, 6484480, 7247360, 7700320, 12320512, 15400640, 24641024, 30801280, 61602560, 123205120]

約数ペア:

[(1, 123205120), (2, 61602560), (4, 30801280), (5, 24641024), (8, 15400640), (10, 12320512), (16, 7700320), (17, 7247360), (19, 6484480), (20, 6160256), (32, 3850160), (34, 3623680), (38, 3242240), (40, 3080128), (64, 1925080), (68, 1811840), (76, 1621120), (80, 1540064), (85, 1449472), (95, 1296896), (128, 962540), (136, 905920), (149, 826880), (152, 810560), (160, 770032), (170, 724736), (190, 648448), (256, 481270), (272, 452960), (298, 413440), (304, 405280), (320, 385016), (323, 381440), (340, 362368), (380, 324224), (512, 240635), (544, 226480), (596, 206720), (608, 202640), (640, 192508), (646, 190720), (680, 181184), (745, 165376), (760, 162112), (1088, 113240), (1192, 103360), (1216, 101320), (1280, 96254), (1292, 95360), (1360, 90592), (1490, 82688), (1520, 81056), (1615, 76288), (2176, 56620), (2384, 51680), (2432, 50660), (2533, 48640), (2560, 48127), (2584, 47680), (2720, 45296), (2831, 43520), (2980, 41344), (3040, 40528), (3230, 38144), (4352, 28310), (4768, 25840), (4864, 25330), (5066, 24320), (5168, 23840), (5440, 22648), (5662, 21760), (5960, 20672), (6080, 20264), (6460, 19072), (8704, 14155), (9536, 12920), (9728, 12665), (10132, 12160), (10336, 11920), (10880, 11324)]