128984960

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:488

約数の個数: 128

約数和(自身を含む): 341863200

約数和(自身を除く): 212878240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 104, 128, 130, 148, 160, 185, 208, 260, 296, 320, 370, 416, 419, 481, 520, 592, 640, 740, 832, 838, 962, 1040, 1184, 1480, 1664, 1676, 1924, 2080, 2095, 2368, 2405, 2960, 3352, 3848, 4160, 4190, 4736, 4810, 5447, 5920, 6704, 7696, 8320, 8380, 9620, 10894, 11840, 13408, 15392, 15503, 16760, 19240, 21788, 23680, 26816, 27235, 30784, 31006, 33520, 38480, 43576, 53632, 54470, 61568, 62012, 67040, 76960, 77515, 87152, 108940, 124024, 134080, 153920, 155030, 174304, 201539, 217880, 248048, 268160, 307840, 310060, 348608, 403078, 435760, 496096, 620120, 697216, 806156, 871520, 992192, 1007695, 1240240, 1612312, 1743040, 1984384, 2015390, 2480480, 3224624, 3486080, 4030780, 4960960, 6449248, 8061560, 9921920, 12898496, 16123120, 25796992, 32246240, 64492480, 128984960]

約数ペア:

[(1, 128984960), (2, 64492480), (4, 32246240), (5, 25796992), (8, 16123120), (10, 12898496), (13, 9921920), (16, 8061560), (20, 6449248), (26, 4960960), (32, 4030780), (37, 3486080), (40, 3224624), (52, 2480480), (64, 2015390), (65, 1984384), (74, 1743040), (80, 1612312), (104, 1240240), (128, 1007695), (130, 992192), (148, 871520), (160, 806156), (185, 697216), (208, 620120), (260, 496096), (296, 435760), (320, 403078), (370, 348608), (416, 310060), (419, 307840), (481, 268160), (520, 248048), (592, 217880), (640, 201539), (740, 174304), (832, 155030), (838, 153920), (962, 134080), (1040, 124024), (1184, 108940), (1480, 87152), (1664, 77515), (1676, 76960), (1924, 67040), (2080, 62012), (2095, 61568), (2368, 54470), (2405, 53632), (2960, 43576), (3352, 38480), (3848, 33520), (4160, 31006), (4190, 30784), (4736, 27235), (4810, 26816), (5447, 23680), (5920, 21788), (6704, 19240), (7696, 16760), (8320, 15503), (8380, 15392), (9620, 13408), (10894, 11840)]