221821120

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{379}}^1$

素因数の和:486

約数の個数: 112

約数和(自身を含む): 555955200

約数和(自身を除く): 334134080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 59, 62, 64, 80, 118, 124, 155, 160, 236, 248, 295, 310, 320, 379, 472, 496, 590, 620, 758, 944, 992, 1180, 1240, 1516, 1829, 1888, 1895, 1984, 2360, 2480, 3032, 3658, 3776, 3790, 4720, 4960, 6064, 7316, 7580, 9145, 9440, 9920, 11749, 12128, 14632, 15160, 18290, 18880, 22361, 23498, 24256, 29264, 30320, 36580, 44722, 46996, 58528, 58745, 60640, 73160, 89444, 93992, 111805, 117056, 117490, 121280, 146320, 178888, 187984, 223610, 234980, 292640, 357776, 375968, 447220, 469960, 585280, 693191, 715552, 751936, 894440, 939920, 1386382, 1431104, 1788880, 1879840, 2772764, 3465955, 3577760, 3759680, 5545528, 6931910, 7155520, 11091056, 13863820, 22182112, 27727640, 44364224, 55455280, 110910560, 221821120]

約数ペア:

[(1, 221821120), (2, 110910560), (4, 55455280), (5, 44364224), (8, 27727640), (10, 22182112), (16, 13863820), (20, 11091056), (31, 7155520), (32, 6931910), (40, 5545528), (59, 3759680), (62, 3577760), (64, 3465955), (80, 2772764), (118, 1879840), (124, 1788880), (155, 1431104), (160, 1386382), (236, 939920), (248, 894440), (295, 751936), (310, 715552), (320, 693191), (379, 585280), (472, 469960), (496, 447220), (590, 375968), (620, 357776), (758, 292640), (944, 234980), (992, 223610), (1180, 187984), (1240, 178888), (1516, 146320), (1829, 121280), (1888, 117490), (1895, 117056), (1984, 111805), (2360, 93992), (2480, 89444), (3032, 73160), (3658, 60640), (3776, 58745), (3790, 58528), (4720, 46996), (4960, 44722), (6064, 36580), (7316, 30320), (7580, 29264), (9145, 24256), (9440, 23498), (9920, 22361), (11749, 18880), (12128, 18290), (14632, 15160)]