209521000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:332

約数の個数: 128

約数和(自身を含む): 537788160

約数和(自身を除く): 328267160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 71, 100, 104, 125, 130, 142, 200, 227, 250, 260, 284, 325, 355, 454, 500, 520, 568, 650, 710, 908, 923, 1000, 1135, 1300, 1420, 1625, 1775, 1816, 1846, 2270, 2600, 2840, 2951, 3250, 3550, 3692, 4540, 4615, 5675, 5902, 6500, 7100, 7384, 8875, 9080, 9230, 11350, 11804, 13000, 14200, 14755, 16117, 17750, 18460, 22700, 23075, 23608, 28375, 29510, 32234, 35500, 36920, 45400, 46150, 56750, 59020, 64468, 71000, 73775, 80585, 92300, 113500, 115375, 118040, 128936, 147550, 161170, 184600, 209521, 227000, 230750, 295100, 322340, 368875, 402925, 419042, 461500, 590200, 644680, 737750, 805850, 838084, 923000, 1047605, 1475500, 1611700, 1676168, 2014625, 2095210, 2951000, 3223400, 4029250, 4190420, 5238025, 8058500, 8380840, 10476050, 16117000, 20952100, 26190125, 41904200, 52380250, 104760500, 209521000]

約数ペア:

[(1, 209521000), (2, 104760500), (4, 52380250), (5, 41904200), (8, 26190125), (10, 20952100), (13, 16117000), (20, 10476050), (25, 8380840), (26, 8058500), (40, 5238025), (50, 4190420), (52, 4029250), (65, 3223400), (71, 2951000), (100, 2095210), (104, 2014625), (125, 1676168), (130, 1611700), (142, 1475500), (200, 1047605), (227, 923000), (250, 838084), (260, 805850), (284, 737750), (325, 644680), (355, 590200), (454, 461500), (500, 419042), (520, 402925), (568, 368875), (650, 322340), (710, 295100), (908, 230750), (923, 227000), (1000, 209521), (1135, 184600), (1300, 161170), (1420, 147550), (1625, 128936), (1775, 118040), (1816, 115375), (1846, 113500), (2270, 92300), (2600, 80585), (2840, 73775), (2951, 71000), (3250, 64468), (3550, 59020), (3692, 56750), (4540, 46150), (4615, 45400), (5675, 36920), (5902, 35500), (6500, 32234), (7100, 29510), (7384, 28375), (8875, 23608), (9080, 23075), (9230, 22700), (11350, 18460), (11804, 17750), (13000, 16117), (14200, 14755)]