64912640

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 173069568

約数和(自身を除く): 108156928

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 47, 52, 64, 65, 80, 83, 94, 104, 128, 130, 160, 166, 188, 208, 235, 256, 260, 320, 332, 376, 415, 416, 470, 520, 611, 640, 664, 752, 830, 832, 940, 1040, 1079, 1222, 1280, 1328, 1504, 1660, 1664, 1880, 2080, 2158, 2444, 2656, 3008, 3055, 3320, 3328, 3760, 3901, 4160, 4316, 4888, 5312, 5395, 6016, 6110, 6640, 7520, 7802, 8320, 8632, 9776, 10624, 10790, 12032, 12220, 13280, 15040, 15604, 16640, 17264, 19505, 19552, 21248, 21580, 24440, 26560, 30080, 31208, 34528, 39010, 39104, 43160, 48880, 50713, 53120, 60160, 62416, 69056, 78020, 78208, 86320, 97760, 101426, 106240, 124832, 138112, 156040, 156416, 172640, 195520, 202852, 249664, 253565, 276224, 312080, 345280, 391040, 405704, 499328, 507130, 624160, 690560, 782080, 811408, 998656, 1014260, 1248320, 1381120, 1622816, 2028520, 2496640, 3245632, 4057040, 4993280, 6491264, 8114080, 12982528, 16228160, 32456320, 64912640]

約数ペア:

[(1, 64912640), (2, 32456320), (4, 16228160), (5, 12982528), (8, 8114080), (10, 6491264), (13, 4993280), (16, 4057040), (20, 3245632), (26, 2496640), (32, 2028520), (40, 1622816), (47, 1381120), (52, 1248320), (64, 1014260), (65, 998656), (80, 811408), (83, 782080), (94, 690560), (104, 624160), (128, 507130), (130, 499328), (160, 405704), (166, 391040), (188, 345280), (208, 312080), (235, 276224), (256, 253565), (260, 249664), (320, 202852), (332, 195520), (376, 172640), (415, 156416), (416, 156040), (470, 138112), (520, 124832), (611, 106240), (640, 101426), (664, 97760), (752, 86320), (830, 78208), (832, 78020), (940, 69056), (1040, 62416), (1079, 60160), (1222, 53120), (1280, 50713), (1328, 48880), (1504, 43160), (1660, 39104), (1664, 39010), (1880, 34528), (2080, 31208), (2158, 30080), (2444, 26560), (2656, 24440), (3008, 21580), (3055, 21248), (3320, 19552), (3328, 19505), (3760, 17264), (3901, 16640), (4160, 15604), (4316, 15040), (4888, 13280), (5312, 12220), (5395, 12032), (6016, 10790), (6110, 10624), (6640, 9776), (7520, 8632), (7802, 8320)]