205657840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:195

約数の個数: 160

約数和(自身を含む): 536376384

約数和(自身を除く): 330718544

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 37, 40, 61, 67, 68, 74, 80, 85, 122, 134, 136, 148, 170, 185, 244, 268, 272, 296, 305, 335, 340, 370, 488, 536, 592, 610, 629, 670, 680, 740, 976, 1037, 1072, 1139, 1220, 1258, 1340, 1360, 1480, 2074, 2257, 2278, 2440, 2479, 2516, 2680, 2960, 3145, 4087, 4148, 4514, 4556, 4880, 4958, 5032, 5185, 5360, 5695, 6290, 8174, 8296, 9028, 9112, 9916, 10064, 10370, 11285, 11390, 12395, 12580, 16348, 16592, 18056, 18224, 19832, 20435, 20740, 22570, 22780, 24790, 25160, 32696, 36112, 38369, 39664, 40870, 41480, 42143, 45140, 45560, 49580, 50320, 65392, 69479, 76738, 81740, 82960, 84286, 90280, 91120, 99160, 138958, 151219, 153476, 163480, 168572, 180560, 191845, 198320, 210715, 277916, 302438, 306952, 326960, 337144, 347395, 383690, 421430, 555832, 604876, 613904, 674288, 694790, 756095, 767380, 842860, 1111664, 1209752, 1389580, 1512190, 1534760, 1685720, 2419504, 2570723, 2779160, 3024380, 3069520, 3371440, 5141446, 5558320, 6048760, 10282892, 12097520, 12853615, 20565784, 25707230, 41131568, 51414460, 102828920, 205657840]

約数ペア:

[(1, 205657840), (2, 102828920), (4, 51414460), (5, 41131568), (8, 25707230), (10, 20565784), (16, 12853615), (17, 12097520), (20, 10282892), (34, 6048760), (37, 5558320), (40, 5141446), (61, 3371440), (67, 3069520), (68, 3024380), (74, 2779160), (80, 2570723), (85, 2419504), (122, 1685720), (134, 1534760), (136, 1512190), (148, 1389580), (170, 1209752), (185, 1111664), (244, 842860), (268, 767380), (272, 756095), (296, 694790), (305, 674288), (335, 613904), (340, 604876), (370, 555832), (488, 421430), (536, 383690), (592, 347395), (610, 337144), (629, 326960), (670, 306952), (680, 302438), (740, 277916), (976, 210715), (1037, 198320), (1072, 191845), (1139, 180560), (1220, 168572), (1258, 163480), (1340, 153476), (1360, 151219), (1480, 138958), (2074, 99160), (2257, 91120), (2278, 90280), (2440, 84286), (2479, 82960), (2516, 81740), (2680, 76738), (2960, 69479), (3145, 65392), (4087, 50320), (4148, 49580), (4514, 45560), (4556, 45140), (4880, 42143), (4958, 41480), (5032, 40870), (5185, 39664), (5360, 38369), (5695, 36112), (6290, 32696), (8174, 25160), (8296, 24790), (9028, 22780), (9112, 22570), (9916, 20740), (10064, 20435), (10370, 19832), (11285, 18224), (11390, 18056), (12395, 16592), (12580, 16348)]