21760144

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:200

約数の個数: 80

約数和(自身を含む): 50889600

約数和(自身を除く): 29129456

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 59, 74, 89, 112, 118, 148, 178, 236, 259, 296, 356, 413, 472, 518, 592, 623, 712, 826, 944, 1036, 1246, 1424, 1652, 2072, 2183, 2492, 3293, 3304, 4144, 4366, 4984, 5251, 6586, 6608, 8732, 9968, 10502, 13172, 15281, 17464, 21004, 23051, 26344, 30562, 34928, 36757, 42008, 46102, 52688, 61124, 73514, 84016, 92204, 122248, 147028, 184408, 194287, 244496, 294056, 368816, 388574, 588112, 777148, 1360009, 1554296, 2720018, 3108592, 5440036, 10880072, 21760144]

約数ペア:

[(1, 21760144), (2, 10880072), (4, 5440036), (7, 3108592), (8, 2720018), (14, 1554296), (16, 1360009), (28, 777148), (37, 588112), (56, 388574), (59, 368816), (74, 294056), (89, 244496), (112, 194287), (118, 184408), (148, 147028), (178, 122248), (236, 92204), (259, 84016), (296, 73514), (356, 61124), (413, 52688), (472, 46102), (518, 42008), (592, 36757), (623, 34928), (712, 30562), (826, 26344), (944, 23051), (1036, 21004), (1246, 17464), (1424, 15281), (1652, 13172), (2072, 10502), (2183, 9968), (2492, 8732), (3293, 6608), (3304, 6586), (4144, 5251), (4366, 4984)]