20125101440

素因数分解:

$2^7\times 5^1\times {\mathrm{163}}^1\times {\mathrm{192917}}^1$

素因数の和:193099

約数の個数: 64

約数和(自身を含む): 48406984560

約数和(自身を除く): 28281883120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 320, 326, 640, 652, 815, 1304, 1630, 2608, 3260, 5216, 6520, 10432, 13040, 20864, 26080, 52160, 104320, 192917, 385834, 771668, 964585, 1543336, 1929170, 3086672, 3858340, 6173344, 7716680, 12346688, 15433360, 24693376, 30866720, 31445471, 61733440, 62890942, 123466880, 125781884, 157227355, 251563768, 314454710, 503127536, 628909420, 1006255072, 1257818840, 2012510144, 2515637680, 4025020288, 5031275360, 10062550720, 20125101440]

約数ペア:

[(1, 20125101440), (2, 10062550720), (4, 5031275360), (5, 4025020288), (8, 2515637680), (10, 2012510144), (16, 1257818840), (20, 1006255072), (32, 628909420), (40, 503127536), (64, 314454710), (80, 251563768), (128, 157227355), (160, 125781884), (163, 123466880), (320, 62890942), (326, 61733440), (640, 31445471), (652, 30866720), (815, 24693376), (1304, 15433360), (1630, 12346688), (2608, 7716680), (3260, 6173344), (5216, 3858340), (6520, 3086672), (10432, 1929170), (13040, 1543336), (20864, 964585), (26080, 771668), (52160, 385834), (104320, 192917)]