72165040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 178247520

約数和(自身を除く): 106082480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 197, 241, 304, 380, 394, 482, 760, 788, 964, 985, 1205, 1520, 1576, 1928, 1970, 2410, 3152, 3743, 3856, 3940, 4579, 4820, 7486, 7880, 9158, 9640, 14972, 15760, 18316, 18715, 19280, 22895, 29944, 36632, 37430, 45790, 47477, 59888, 73264, 74860, 91580, 94954, 149720, 183160, 189908, 237385, 299440, 366320, 379816, 474770, 759632, 902063, 949540, 1804126, 1899080, 3608252, 3798160, 4510315, 7216504, 9020630, 14433008, 18041260, 36082520, 72165040]

約数ペア:

[(1, 72165040), (2, 36082520), (4, 18041260), (5, 14433008), (8, 9020630), (10, 7216504), (16, 4510315), (19, 3798160), (20, 3608252), (38, 1899080), (40, 1804126), (76, 949540), (80, 902063), (95, 759632), (152, 474770), (190, 379816), (197, 366320), (241, 299440), (304, 237385), (380, 189908), (394, 183160), (482, 149720), (760, 94954), (788, 91580), (964, 74860), (985, 73264), (1205, 59888), (1520, 47477), (1576, 45790), (1928, 37430), (1970, 36632), (2410, 29944), (3152, 22895), (3743, 19280), (3856, 18715), (3940, 18316), (4579, 15760), (4820, 14972), (7486, 9640), (7880, 9158)]