About the Number

209919640

209919639 ← → 209919641

2進数表記:1100100000110001111010011000

漢数字表記:二億九百九十一万九千六百四十

素因数分解:

2 3 × 5 1 × 7 1 × 59 1 × 97 1 × 131 1

素因数の和:305
約数の個数: 128
約数和(自身を含む): 558835200
約数和(自身を除く): 348915560

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 59, 70, 97, 118, 131, 140, 194, 236, 262, 280, 295, 388, 413, 472, 485, 524, 590, 655, 679, 776, 826, 917, 970, 1048, 1180, 1310, 1358, 1652, 1834, 1940, 2065, 2360, 2620, 2716, 3304, 3395, 3668, 3880, 4130, 4585, 5240, 5432, 5723, 6790, 7336, 7729, 8260, 9170, 11446, 12707, 13580, 15458, 16520, 18340, 22892, 25414, 27160, 28615, 30916, 36680, 38645, 40061, 45784, 50828, 54103, 57230, 61832, 63535, 77290, 80122, 88949, 101656, 108206, 114460, 127070, 154580, 160244, 177898, 200305, 216412, 228920, 254140, 270515, 309160, 320488, 355796, 400610, 432824, 444745, 508280, 541030, 711592, 749713, 801220, 889490, 1082060, 1499426, 1602440, 1778980, 2164120, 2998852, 3557960, 3748565, 5247991, 5997704, 7497130, 10495982, 14994260, 20991964, 26239955, 29988520, 41983928, 52479910, 104959820, 209919640]

約数ペア:
[(1, 209919640), (2, 104959820), (4, 52479910), (5, 41983928), (7, 29988520), (8, 26239955), (10, 20991964), (14, 14994260), (20, 10495982), (28, 7497130), (35, 5997704), (40, 5247991), (56, 3748565), (59, 3557960), (70, 2998852), (97, 2164120), (118, 1778980), (131, 1602440), (140, 1499426), (194, 1082060), (236, 889490), (262, 801220), (280, 749713), (295, 711592), (388, 541030), (413, 508280), (472, 444745), (485, 432824), (524, 400610), (590, 355796), (655, 320488), (679, 309160), (776, 270515), (826, 254140), (917, 228920), (970, 216412), (1048, 200305), (1180, 177898), (1310, 160244), (1358, 154580), (1652, 127070), (1834, 114460), (1940, 108206), (2065, 101656), (2360, 88949), (2620, 80122), (2716, 77290), (3304, 63535), (3395, 61832), (3668, 57230), (3880, 54103), (4130, 50828), (4585, 45784), (5240, 40061), (5432, 38645), (5723, 36680), (6790, 30916), (7336, 28615), (7729, 27160), (8260, 25414), (9170, 22892), (11446, 18340), (12707, 16520), (13580, 15458)]

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