257701600

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:453

約数の個数: 144

約数和(自身を含む): 689018400

約数和(自身を除く): 431316800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 71, 80, 100, 104, 130, 142, 160, 200, 208, 260, 284, 325, 349, 355, 400, 416, 520, 568, 650, 698, 710, 800, 923, 1040, 1136, 1300, 1396, 1420, 1745, 1775, 1846, 2080, 2272, 2600, 2792, 2840, 3490, 3550, 3692, 4537, 4615, 5200, 5584, 5680, 6980, 7100, 7384, 8725, 9074, 9230, 10400, 11168, 11360, 13960, 14200, 14768, 17450, 18148, 18460, 22685, 23075, 24779, 27920, 28400, 29536, 34900, 36296, 36920, 45370, 46150, 49558, 55840, 56800, 69800, 72592, 73840, 90740, 92300, 99116, 113425, 123895, 139600, 145184, 147680, 181480, 184600, 198232, 226850, 247790, 279200, 322127, 362960, 369200, 396464, 453700, 495580, 619475, 644254, 725920, 738400, 792928, 907400, 991160, 1238950, 1288508, 1610635, 1814800, 1982320, 2477900, 2577016, 3221270, 3629600, 3964640, 4955800, 5154032, 6442540, 8053175, 9911600, 10308064, 12885080, 16106350, 19823200, 25770160, 32212700, 51540320, 64425400, 128850800, 257701600]

約数ペア:

[(1, 257701600), (2, 128850800), (4, 64425400), (5, 51540320), (8, 32212700), (10, 25770160), (13, 19823200), (16, 16106350), (20, 12885080), (25, 10308064), (26, 9911600), (32, 8053175), (40, 6442540), (50, 5154032), (52, 4955800), (65, 3964640), (71, 3629600), (80, 3221270), (100, 2577016), (104, 2477900), (130, 1982320), (142, 1814800), (160, 1610635), (200, 1288508), (208, 1238950), (260, 991160), (284, 907400), (325, 792928), (349, 738400), (355, 725920), (400, 644254), (416, 619475), (520, 495580), (568, 453700), (650, 396464), (698, 369200), (710, 362960), (800, 322127), (923, 279200), (1040, 247790), (1136, 226850), (1300, 198232), (1396, 184600), (1420, 181480), (1745, 147680), (1775, 145184), (1846, 139600), (2080, 123895), (2272, 113425), (2600, 99116), (2792, 92300), (2840, 90740), (3490, 73840), (3550, 72592), (3692, 69800), (4537, 56800), (4615, 55840), (5200, 49558), (5584, 46150), (5680, 45370), (6980, 36920), (7100, 36296), (7384, 34900), (8725, 29536), (9074, 28400), (9230, 27920), (10400, 24779), (11168, 23075), (11360, 22685), (13960, 18460), (14200, 18148), (14768, 17450)]