81996810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:288

約数の個数: 128

約数和(自身を含む): 236127744

約数和(自身を除く): 154130934

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 37, 42, 61, 70, 74, 105, 111, 122, 173, 183, 185, 210, 222, 259, 305, 346, 366, 370, 427, 518, 519, 555, 610, 777, 854, 865, 915, 1038, 1110, 1211, 1281, 1295, 1554, 1730, 1830, 2135, 2257, 2422, 2562, 2590, 2595, 3633, 3885, 4270, 4514, 5190, 6055, 6401, 6405, 6771, 7266, 7770, 10553, 11285, 12110, 12802, 12810, 13542, 15799, 18165, 19203, 21106, 22570, 31598, 31659, 32005, 33855, 36330, 38406, 44807, 47397, 52765, 63318, 64010, 67710, 73871, 78995, 89614, 94794, 96015, 105530, 134421, 147742, 157990, 158295, 192030, 221613, 224035, 236985, 268842, 316590, 369355, 390461, 443226, 448070, 473970, 672105, 738710, 780922, 1108065, 1171383, 1344210, 1952305, 2216130, 2342766, 2733227, 3904610, 5466454, 5856915, 8199681, 11713830, 13666135, 16399362, 27332270, 40998405, 81996810]

約数ペア:

[(1, 81996810), (2, 40998405), (3, 27332270), (5, 16399362), (6, 13666135), (7, 11713830), (10, 8199681), (14, 5856915), (15, 5466454), (21, 3904610), (30, 2733227), (35, 2342766), (37, 2216130), (42, 1952305), (61, 1344210), (70, 1171383), (74, 1108065), (105, 780922), (111, 738710), (122, 672105), (173, 473970), (183, 448070), (185, 443226), (210, 390461), (222, 369355), (259, 316590), (305, 268842), (346, 236985), (366, 224035), (370, 221613), (427, 192030), (518, 158295), (519, 157990), (555, 147742), (610, 134421), (777, 105530), (854, 96015), (865, 94794), (915, 89614), (1038, 78995), (1110, 73871), (1211, 67710), (1281, 64010), (1295, 63318), (1554, 52765), (1730, 47397), (1830, 44807), (2135, 38406), (2257, 36330), (2422, 33855), (2562, 32005), (2590, 31659), (2595, 31598), (3633, 22570), (3885, 21106), (4270, 19203), (4514, 18165), (5190, 15799), (6055, 13542), (6401, 12810), (6405, 12802), (6771, 12110), (7266, 11285), (7770, 10553)]