128081920

素因数分解:

$2^{13}\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:143

約数の個数: 112

約数和(自身を含む): 318485520

約数和(自身を除く): 190403600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 59, 64, 80, 106, 118, 128, 160, 212, 236, 256, 265, 295, 320, 424, 472, 512, 530, 590, 640, 848, 944, 1024, 1060, 1180, 1280, 1696, 1888, 2048, 2120, 2360, 2560, 3127, 3392, 3776, 4096, 4240, 4720, 5120, 6254, 6784, 7552, 8192, 8480, 9440, 10240, 12508, 13568, 15104, 15635, 16960, 18880, 20480, 25016, 27136, 30208, 31270, 33920, 37760, 40960, 50032, 54272, 60416, 62540, 67840, 75520, 100064, 108544, 120832, 125080, 135680, 151040, 200128, 217088, 241664, 250160, 271360, 302080, 400256, 434176, 483328, 500320, 542720, 604160, 800512, 1000640, 1085440, 1208320, 1601024, 2001280, 2170880, 2416640, 3202048, 4002560, 6404096, 8005120, 12808192, 16010240, 25616384, 32020480, 64040960, 128081920]

約数ペア:

[(1, 128081920), (2, 64040960), (4, 32020480), (5, 25616384), (8, 16010240), (10, 12808192), (16, 8005120), (20, 6404096), (32, 4002560), (40, 3202048), (53, 2416640), (59, 2170880), (64, 2001280), (80, 1601024), (106, 1208320), (118, 1085440), (128, 1000640), (160, 800512), (212, 604160), (236, 542720), (256, 500320), (265, 483328), (295, 434176), (320, 400256), (424, 302080), (472, 271360), (512, 250160), (530, 241664), (590, 217088), (640, 200128), (848, 151040), (944, 135680), (1024, 125080), (1060, 120832), (1180, 108544), (1280, 100064), (1696, 75520), (1888, 67840), (2048, 62540), (2120, 60416), (2360, 54272), (2560, 50032), (3127, 40960), (3392, 37760), (3776, 33920), (4096, 31270), (4240, 30208), (4720, 27136), (5120, 25016), (6254, 20480), (6784, 18880), (7552, 16960), (8192, 15635), (8480, 15104), (9440, 13568), (10240, 12508)]