206416600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:270

約数の個数: 144

約数和(自身を含む): 539161920

約数和(自身を除く): 332745320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 31, 40, 50, 52, 62, 65, 100, 104, 124, 130, 155, 169, 197, 200, 248, 260, 310, 325, 338, 394, 403, 520, 620, 650, 676, 775, 788, 806, 845, 985, 1240, 1300, 1352, 1550, 1576, 1612, 1690, 1970, 2015, 2561, 2600, 3100, 3224, 3380, 3940, 4030, 4225, 4925, 5122, 5239, 6107, 6200, 6760, 7880, 8060, 8450, 9850, 10075, 10244, 10478, 12214, 12805, 16120, 16900, 19700, 20150, 20488, 20956, 24428, 25610, 26195, 30535, 33293, 33800, 39400, 40300, 41912, 48856, 51220, 52390, 61070, 64025, 66586, 79391, 80600, 102440, 104780, 122140, 128050, 130975, 133172, 152675, 158782, 166465, 209560, 244280, 256100, 261950, 266344, 305350, 317564, 332930, 396955, 512200, 523900, 610700, 635128, 665860, 793910, 832325, 1032083, 1047800, 1221400, 1331720, 1587820, 1664650, 1984775, 2064166, 3175640, 3329300, 3969550, 4128332, 5160415, 6658600, 7939100, 8256664, 10320830, 15878200, 20641660, 25802075, 41283320, 51604150, 103208300, 206416600]

約数ペア:

[(1, 206416600), (2, 103208300), (4, 51604150), (5, 41283320), (8, 25802075), (10, 20641660), (13, 15878200), (20, 10320830), (25, 8256664), (26, 7939100), (31, 6658600), (40, 5160415), (50, 4128332), (52, 3969550), (62, 3329300), (65, 3175640), (100, 2064166), (104, 1984775), (124, 1664650), (130, 1587820), (155, 1331720), (169, 1221400), (197, 1047800), (200, 1032083), (248, 832325), (260, 793910), (310, 665860), (325, 635128), (338, 610700), (394, 523900), (403, 512200), (520, 396955), (620, 332930), (650, 317564), (676, 305350), (775, 266344), (788, 261950), (806, 256100), (845, 244280), (985, 209560), (1240, 166465), (1300, 158782), (1352, 152675), (1550, 133172), (1576, 130975), (1612, 128050), (1690, 122140), (1970, 104780), (2015, 102440), (2561, 80600), (2600, 79391), (3100, 66586), (3224, 64025), (3380, 61070), (3940, 52390), (4030, 51220), (4225, 48856), (4925, 41912), (5122, 40300), (5239, 39400), (6107, 33800), (6200, 33293), (6760, 30535), (7880, 26195), (8060, 25610), (8450, 24428), (9850, 20956), (10075, 20488), (10244, 20150), (10478, 19700), (12214, 16900), (12805, 16120)]