1638183680

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{26119}}^1$

素因数の和:26154

約数の個数: 108

約数和(自身を含む): 4564783440

約数和(自身を除く): 2926599760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2240, 3136, 3920, 4480, 6272, 7840, 8960, 12544, 15680, 26119, 31360, 52238, 62720, 104476, 130595, 182833, 208952, 261190, 365666, 417904, 522380, 731332, 835808, 914165, 1044760, 1279831, 1462664, 1671616, 1828330, 2089520, 2559662, 2925328, 3343232, 3656660, 4179040, 5119324, 5850656, 6399155, 6686464, 7313320, 8358080, 10238648, 11701312, 12798310, 14626640, 16716160, 20477296, 23402624, 25596620, 29253280, 33432320, 40954592, 46805248, 51193240, 58506560, 81909184, 102386480, 117013120, 163818368, 204772960, 234026240, 327636736, 409545920, 819091840, 1638183680]

約数ペア:

[(1, 1638183680), (2, 819091840), (4, 409545920), (5, 327636736), (7, 234026240), (8, 204772960), (10, 163818368), (14, 117013120), (16, 102386480), (20, 81909184), (28, 58506560), (32, 51193240), (35, 46805248), (40, 40954592), (49, 33432320), (56, 29253280), (64, 25596620), (70, 23402624), (80, 20477296), (98, 16716160), (112, 14626640), (128, 12798310), (140, 11701312), (160, 10238648), (196, 8358080), (224, 7313320), (245, 6686464), (256, 6399155), (280, 5850656), (320, 5119324), (392, 4179040), (448, 3656660), (490, 3343232), (560, 2925328), (640, 2559662), (784, 2089520), (896, 1828330), (980, 1671616), (1120, 1462664), (1280, 1279831), (1568, 1044760), (1792, 914165), (1960, 835808), (2240, 731332), (3136, 522380), (3920, 417904), (4480, 365666), (6272, 261190), (7840, 208952), (8960, 182833), (12544, 130595), (15680, 104476), (26119, 62720), (31360, 52238)]