20121255808

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1\times {\mathrm{397}}^1$

素因数の和:736

約数の個数: 128

約数和(自身を含む): 42440682240

約数和(自身を除く): 22319426432

約数列:

[1, 2, 4, 8, 16, 31, 32, 53, 62, 64, 106, 124, 128, 212, 241, 248, 397, 424, 482, 496, 794, 848, 964, 992, 1588, 1643, 1696, 1928, 1984, 3176, 3286, 3392, 3856, 3968, 6352, 6572, 6784, 7471, 7712, 12307, 12704, 12773, 13144, 14942, 15424, 21041, 24614, 25408, 25546, 26288, 29884, 30848, 42082, 49228, 50816, 51092, 52576, 59768, 84164, 95677, 98456, 102184, 105152, 119536, 168328, 191354, 196912, 204368, 210304, 239072, 336656, 382708, 393824, 395963, 408736, 478144, 652271, 673312, 765416, 787648, 791926, 817472, 956288, 1304542, 1346624, 1530832, 1575296, 1583852, 1634944, 2609084, 2693248, 2965987, 3061664, 3167704, 5070881, 5218168, 5931974, 6123328, 6335408, 10141762, 10436336, 11863948, 12246656, 12670816, 20283524, 20872672, 23727896, 25341632, 40567048, 41745344, 47455792, 50683264, 81134096, 83490688, 94911584, 157197311, 162268192, 189823168, 314394622, 324536384, 379646336, 628789244, 649072768, 1257578488, 2515156976, 5030313952, 10060627904, 20121255808]

約数ペア:

[(1, 20121255808), (2, 10060627904), (4, 5030313952), (8, 2515156976), (16, 1257578488), (31, 649072768), (32, 628789244), (53, 379646336), (62, 324536384), (64, 314394622), (106, 189823168), (124, 162268192), (128, 157197311), (212, 94911584), (241, 83490688), (248, 81134096), (397, 50683264), (424, 47455792), (482, 41745344), (496, 40567048), (794, 25341632), (848, 23727896), (964, 20872672), (992, 20283524), (1588, 12670816), (1643, 12246656), (1696, 11863948), (1928, 10436336), (1984, 10141762), (3176, 6335408), (3286, 6123328), (3392, 5931974), (3856, 5218168), (3968, 5070881), (6352, 3167704), (6572, 3061664), (6784, 2965987), (7471, 2693248), (7712, 2609084), (12307, 1634944), (12704, 1583852), (12773, 1575296), (13144, 1530832), (14942, 1346624), (15424, 1304542), (21041, 956288), (24614, 817472), (25408, 791926), (25546, 787648), (26288, 765416), (29884, 673312), (30848, 652271), (42082, 478144), (49228, 408736), (50816, 395963), (51092, 393824), (52576, 382708), (59768, 336656), (84164, 239072), (95677, 210304), (98456, 204368), (102184, 196912), (105152, 191354), (119536, 168328)]