639404928

素因数分解:

$2^7\times 3^5\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:427

約数の個数: 192

約数和(自身を含む): 1945135920

約数和(自身を除く): 1305730992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 61, 64, 72, 81, 96, 108, 122, 128, 144, 162, 183, 192, 216, 243, 244, 288, 324, 337, 366, 384, 432, 486, 488, 549, 576, 648, 674, 732, 864, 972, 976, 1011, 1098, 1152, 1296, 1348, 1464, 1647, 1728, 1944, 1952, 2022, 2196, 2592, 2696, 2928, 3033, 3294, 3456, 3888, 3904, 4044, 4392, 4941, 5184, 5392, 5856, 6066, 6588, 7776, 7808, 8088, 8784, 9099, 9882, 10368, 10784, 11712, 12132, 13176, 14823, 15552, 16176, 17568, 18198, 19764, 20557, 21568, 23424, 24264, 26352, 27297, 29646, 31104, 32352, 35136, 36396, 39528, 41114, 43136, 48528, 52704, 54594, 59292, 61671, 64704, 70272, 72792, 79056, 81891, 82228, 97056, 105408, 109188, 118584, 123342, 129408, 145584, 158112, 163782, 164456, 185013, 194112, 210816, 218376, 237168, 246684, 291168, 316224, 327564, 328912, 370026, 388224, 436752, 474336, 493368, 555039, 582336, 632448, 655128, 657824, 740052, 873504, 948672, 986736, 1110078, 1164672, 1310256, 1315648, 1480104, 1665117, 1747008, 1897344, 1973472, 2220156, 2620512, 2631296, 2960208, 3330234, 3494016, 3946944, 4440312, 4995351, 5241024, 5920416, 6660468, 7893888, 8880624, 9990702, 10482048, 11840832, 13320936, 17761248, 19981404, 23681664, 26641872, 35522496, 39962808, 53283744, 71044992, 79925616, 106567488, 159851232, 213134976, 319702464, 639404928]

約数ペア:

[(1, 639404928), (2, 319702464), (3, 213134976), (4, 159851232), (6, 106567488), (8, 79925616), (9, 71044992), (12, 53283744), (16, 39962808), (18, 35522496), (24, 26641872), (27, 23681664), (32, 19981404), (36, 17761248), (48, 13320936), (54, 11840832), (61, 10482048), (64, 9990702), (72, 8880624), (81, 7893888), (96, 6660468), (108, 5920416), (122, 5241024), (128, 4995351), (144, 4440312), (162, 3946944), (183, 3494016), (192, 3330234), (216, 2960208), (243, 2631296), (244, 2620512), (288, 2220156), (324, 1973472), (337, 1897344), (366, 1747008), (384, 1665117), (432, 1480104), (486, 1315648), (488, 1310256), (549, 1164672), (576, 1110078), (648, 986736), (674, 948672), (732, 873504), (864, 740052), (972, 657824), (976, 655128), (1011, 632448), (1098, 582336), (1152, 555039), (1296, 493368), (1348, 474336), (1464, 436752), (1647, 388224), (1728, 370026), (1944, 328912), (1952, 327564), (2022, 316224), (2196, 291168), (2592, 246684), (2696, 237168), (2928, 218376), (3033, 210816), (3294, 194112), (3456, 185013), (3888, 164456), (3904, 163782), (4044, 158112), (4392, 145584), (4941, 129408), (5184, 123342), (5392, 118584), (5856, 109188), (6066, 105408), (6588, 97056), (7776, 82228), (7808, 81891), (8088, 79056), (8784, 72792), (9099, 70272), (9882, 64704), (10368, 61671), (10784, 59292), (11712, 54594), (12132, 52704), (13176, 48528), (14823, 43136), (15552, 41114), (16176, 39528), (17568, 36396), (18198, 35136), (19764, 32352), (20557, 31104), (21568, 29646), (23424, 27297), (24264, 26352)]