20218757318

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:442

約数の個数: 96

約数和(自身を含む): 34287805440

約数和(自身を除く): 14069048122

約数列:

[1, 2, 19, 31, 38, 59, 61, 62, 118, 122, 251, 361, 502, 589, 722, 1121, 1159, 1178, 1829, 1891, 2242, 2318, 3599, 3658, 3782, 4769, 7198, 7781, 9538, 11191, 14809, 15311, 15562, 21299, 22021, 22382, 29618, 30622, 34751, 35929, 42598, 44042, 68381, 69502, 71858, 90611, 111569, 136762, 147839, 181222, 223138, 281371, 290909, 295678, 459079, 474641, 562742, 581818, 660269, 682651, 903349, 918158, 949282, 1299239, 1320538, 1365302, 1806698, 2119811, 2598478, 2808941, 4239622, 5346049, 5527271, 5617882, 8722501, 9018179, 10692098, 11054542, 17163631, 17445002, 18036358, 28003819, 34327262, 40276409, 56007638, 80552818, 165727519, 171345401, 326108989, 331455038, 342690802, 532072561, 652217978, 1064145122, 10109378659, 20218757318]

約数ペア:

[(1, 20218757318), (2, 10109378659), (19, 1064145122), (31, 652217978), (38, 532072561), (59, 342690802), (61, 331455038), (62, 326108989), (118, 171345401), (122, 165727519), (251, 80552818), (361, 56007638), (502, 40276409), (589, 34327262), (722, 28003819), (1121, 18036358), (1159, 17445002), (1178, 17163631), (1829, 11054542), (1891, 10692098), (2242, 9018179), (2318, 8722501), (3599, 5617882), (3658, 5527271), (3782, 5346049), (4769, 4239622), (7198, 2808941), (7781, 2598478), (9538, 2119811), (11191, 1806698), (14809, 1365302), (15311, 1320538), (15562, 1299239), (21299, 949282), (22021, 918158), (22382, 903349), (29618, 682651), (30622, 660269), (34751, 581818), (35929, 562742), (42598, 474641), (44042, 459079), (68381, 295678), (69502, 290909), (71858, 281371), (90611, 223138), (111569, 181222), (136762, 147839)]