404656640

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5099}}^1$

素因数の和:5153

約数の個数: 80

約数和(自身を含む): 1001721600

約数和(自身を除く): 597064960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 5099, 7936, 9920, 10198, 15872, 19840, 20396, 25495, 39680, 40792, 50990, 79360, 81584, 101980, 158069, 163168, 203960, 316138, 326336, 407920, 632276, 652672, 790345, 815840, 1264552, 1305344, 1580690, 1631680, 2529104, 2610688, 3161380, 3263360, 5058208, 6322760, 6526720, 10116416, 12645520, 13053440, 20232832, 25291040, 40465664, 50582080, 80931328, 101164160, 202328320, 404656640]

約数ペア:

[(1, 404656640), (2, 202328320), (4, 101164160), (5, 80931328), (8, 50582080), (10, 40465664), (16, 25291040), (20, 20232832), (31, 13053440), (32, 12645520), (40, 10116416), (62, 6526720), (64, 6322760), (80, 5058208), (124, 3263360), (128, 3161380), (155, 2610688), (160, 2529104), (248, 1631680), (256, 1580690), (310, 1305344), (320, 1264552), (496, 815840), (512, 790345), (620, 652672), (640, 632276), (992, 407920), (1240, 326336), (1280, 316138), (1984, 203960), (2480, 163168), (2560, 158069), (3968, 101980), (4960, 81584), (5099, 79360), (7936, 50990), (9920, 40792), (10198, 39680), (15872, 25495), (19840, 20396)]