20578607984

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^2\times {\mathrm{421}}^1$

素因数の和:536

約数の個数: 180

約数和(自身を含む): 47856729384

約数和(自身を除く): 27278121400

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 31, 34, 44, 62, 68, 88, 124, 136, 176, 187, 248, 272, 289, 341, 374, 421, 496, 527, 578, 682, 748, 842, 961, 1054, 1156, 1364, 1496, 1684, 1922, 2108, 2312, 2728, 2992, 3179, 3368, 3844, 4216, 4624, 4631, 5456, 5797, 6358, 6736, 7157, 7688, 8432, 8959, 9262, 10571, 11594, 12716, 13051, 14314, 15376, 16337, 17918, 18524, 21142, 23188, 25432, 26102, 28628, 32674, 35836, 37048, 42284, 46376, 50864, 52204, 57256, 65348, 71672, 74096, 78727, 84568, 92752, 98549, 104408, 114512, 121669, 130696, 143344, 143561, 157454, 169136, 179707, 197098, 208816, 221867, 243338, 261392, 277729, 287122, 314908, 359414, 394196, 404581, 443734, 486676, 555458, 574244, 629816, 718828, 788392, 809162, 887468, 973352, 1110916, 1148488, 1259632, 1338359, 1437656, 1576784, 1618324, 1774936, 1946704, 2221832, 2296976, 2440537, 2676718, 2875312, 3055019, 3236648, 3549872, 3771739, 4443664, 4450391, 4881074, 5353436, 6110038, 6473296, 6877877, 7543478, 8900782, 9762148, 10706872, 12220076, 13755754, 15086956, 17801564, 19524296, 21413744, 24440152, 27511508, 30173912, 35603128, 39048592, 41489129, 48880304, 55023016, 60347824, 71206256, 75656647, 82978258, 110046032, 116923909, 151313294, 165956516, 233847818, 302626588, 331913032, 467695636, 605253176, 663826064, 935391272, 1210506352, 1286162999, 1870782544, 2572325998, 5144651996, 10289303992, 20578607984]

約数ペア:

[(1, 20578607984), (2, 10289303992), (4, 5144651996), (8, 2572325998), (11, 1870782544), (16, 1286162999), (17, 1210506352), (22, 935391272), (31, 663826064), (34, 605253176), (44, 467695636), (62, 331913032), (68, 302626588), (88, 233847818), (124, 165956516), (136, 151313294), (176, 116923909), (187, 110046032), (248, 82978258), (272, 75656647), (289, 71206256), (341, 60347824), (374, 55023016), (421, 48880304), (496, 41489129), (527, 39048592), (578, 35603128), (682, 30173912), (748, 27511508), (842, 24440152), (961, 21413744), (1054, 19524296), (1156, 17801564), (1364, 15086956), (1496, 13755754), (1684, 12220076), (1922, 10706872), (2108, 9762148), (2312, 8900782), (2728, 7543478), (2992, 6877877), (3179, 6473296), (3368, 6110038), (3844, 5353436), (4216, 4881074), (4624, 4450391), (4631, 4443664), (5456, 3771739), (5797, 3549872), (6358, 3236648), (6736, 3055019), (7157, 2875312), (7688, 2676718), (8432, 2440537), (8959, 2296976), (9262, 2221832), (10571, 1946704), (11594, 1774936), (12716, 1618324), (13051, 1576784), (14314, 1437656), (15376, 1338359), (16337, 1259632), (17918, 1148488), (18524, 1110916), (21142, 973352), (23188, 887468), (25432, 809162), (26102, 788392), (28628, 718828), (32674, 629816), (35836, 574244), (37048, 555458), (42284, 486676), (46376, 443734), (50864, 404581), (52204, 394196), (57256, 359414), (65348, 314908), (71672, 287122), (74096, 277729), (78727, 261392), (84568, 243338), (92752, 221867), (98549, 208816), (104408, 197098), (114512, 179707), (121669, 169136), (130696, 157454), (143344, 143561)]