217561260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^2\times {\mathrm{83}}^1$

素因数の和:260

約数の個数: 144

約数和(自身を含む): 713615616

約数和(自身を除く): 496054356

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 79, 83, 84, 105, 140, 158, 166, 210, 237, 249, 316, 332, 395, 415, 420, 474, 498, 553, 581, 790, 830, 948, 996, 1106, 1162, 1185, 1245, 1580, 1659, 1660, 1743, 2212, 2324, 2370, 2490, 2765, 2905, 3318, 3486, 4740, 4980, 5530, 5810, 6241, 6557, 6636, 6972, 8295, 8715, 11060, 11620, 12482, 13114, 16590, 17430, 18723, 19671, 24964, 26228, 31205, 32785, 33180, 34860, 37446, 39342, 43687, 45899, 62410, 65570, 74892, 78684, 87374, 91798, 93615, 98355, 124820, 131061, 131140, 137697, 174748, 183596, 187230, 196710, 218435, 229495, 262122, 275394, 374460, 393420, 436870, 458990, 518003, 524244, 550788, 655305, 688485, 873740, 917980, 1036006, 1310610, 1376970, 1554009, 2072012, 2590015, 2621220, 2753940, 3108018, 3626021, 5180030, 6216036, 7252042, 7770045, 10360060, 10878063, 14504084, 15540090, 18130105, 21756126, 31080180, 36260210, 43512252, 54390315, 72520420, 108780630, 217561260]

約数ペア:

[(1, 217561260), (2, 108780630), (3, 72520420), (4, 54390315), (5, 43512252), (6, 36260210), (7, 31080180), (10, 21756126), (12, 18130105), (14, 15540090), (15, 14504084), (20, 10878063), (21, 10360060), (28, 7770045), (30, 7252042), (35, 6216036), (42, 5180030), (60, 3626021), (70, 3108018), (79, 2753940), (83, 2621220), (84, 2590015), (105, 2072012), (140, 1554009), (158, 1376970), (166, 1310610), (210, 1036006), (237, 917980), (249, 873740), (316, 688485), (332, 655305), (395, 550788), (415, 524244), (420, 518003), (474, 458990), (498, 436870), (553, 393420), (581, 374460), (790, 275394), (830, 262122), (948, 229495), (996, 218435), (1106, 196710), (1162, 187230), (1185, 183596), (1245, 174748), (1580, 137697), (1659, 131140), (1660, 131061), (1743, 124820), (2212, 98355), (2324, 93615), (2370, 91798), (2490, 87374), (2765, 78684), (2905, 74892), (3318, 65570), (3486, 62410), (4740, 45899), (4980, 43687), (5530, 39342), (5810, 37446), (6241, 34860), (6557, 33180), (6636, 32785), (6972, 31205), (8295, 26228), (8715, 24964), (11060, 19671), (11620, 18723), (12482, 17430), (13114, 16590)]