221501980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{701}}^1$

素因数の和:815

約数の個数: 96

約数和(自身を含む): 555714432

約数和(自身を除く): 334212452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 61, 70, 74, 122, 140, 148, 185, 244, 259, 305, 370, 427, 518, 610, 701, 740, 854, 1036, 1220, 1295, 1402, 1708, 2135, 2257, 2590, 2804, 3505, 4270, 4514, 4907, 5180, 7010, 8540, 9028, 9814, 11285, 14020, 15799, 19628, 22570, 24535, 25937, 31598, 42761, 45140, 49070, 51874, 63196, 78995, 85522, 98140, 103748, 129685, 157990, 171044, 181559, 213805, 259370, 299327, 315980, 363118, 427610, 518740, 598654, 726236, 855220, 907795, 1197308, 1496635, 1582157, 1815590, 2993270, 3164314, 3631180, 5986540, 6328628, 7910785, 11075099, 15821570, 22150198, 31643140, 44300396, 55375495, 110750990, 221501980]

約数ペア:

[(1, 221501980), (2, 110750990), (4, 55375495), (5, 44300396), (7, 31643140), (10, 22150198), (14, 15821570), (20, 11075099), (28, 7910785), (35, 6328628), (37, 5986540), (61, 3631180), (70, 3164314), (74, 2993270), (122, 1815590), (140, 1582157), (148, 1496635), (185, 1197308), (244, 907795), (259, 855220), (305, 726236), (370, 598654), (427, 518740), (518, 427610), (610, 363118), (701, 315980), (740, 299327), (854, 259370), (1036, 213805), (1220, 181559), (1295, 171044), (1402, 157990), (1708, 129685), (2135, 103748), (2257, 98140), (2590, 85522), (2804, 78995), (3505, 63196), (4270, 51874), (4514, 49070), (4907, 45140), (5180, 42761), (7010, 31598), (8540, 25937), (9028, 24535), (9814, 22570), (11285, 19628), (14020, 15799)]