212888920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:713

約数の個数: 96

約数和(自身を含む): 528340320

約数和(自身を除く): 315451400

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 92, 95, 115, 152, 184, 190, 230, 361, 380, 437, 460, 641, 722, 760, 874, 920, 1282, 1444, 1748, 1805, 2185, 2564, 2888, 3205, 3496, 3610, 4370, 5128, 6410, 7220, 8303, 8740, 12179, 12820, 14440, 14743, 16606, 17480, 24358, 25640, 29486, 33212, 41515, 48716, 58972, 60895, 66424, 73715, 83030, 97432, 117944, 121790, 147430, 166060, 231401, 243580, 280117, 294860, 332120, 462802, 487160, 560234, 589720, 925604, 1120468, 1157005, 1400585, 1851208, 2240936, 2314010, 2801170, 4628020, 5322223, 5602340, 9256040, 10644446, 11204680, 21288892, 26611115, 42577784, 53222230, 106444460, 212888920]

約数ペア:

[(1, 212888920), (2, 106444460), (4, 53222230), (5, 42577784), (8, 26611115), (10, 21288892), (19, 11204680), (20, 10644446), (23, 9256040), (38, 5602340), (40, 5322223), (46, 4628020), (76, 2801170), (92, 2314010), (95, 2240936), (115, 1851208), (152, 1400585), (184, 1157005), (190, 1120468), (230, 925604), (361, 589720), (380, 560234), (437, 487160), (460, 462802), (641, 332120), (722, 294860), (760, 280117), (874, 243580), (920, 231401), (1282, 166060), (1444, 147430), (1748, 121790), (1805, 117944), (2185, 97432), (2564, 83030), (2888, 73715), (3205, 66424), (3496, 60895), (3610, 58972), (4370, 48716), (5128, 41515), (6410, 33212), (7220, 29486), (8303, 25640), (8740, 24358), (12179, 17480), (12820, 16606), (14440, 14743)]