81652760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:481

約数の個数: 128

約数和(自身を含む): 226713600

約数和(自身を除く): 145060840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 92, 115, 124, 140, 155, 161, 184, 217, 230, 248, 280, 310, 322, 409, 434, 460, 620, 644, 713, 805, 818, 868, 920, 1085, 1240, 1288, 1426, 1610, 1636, 1736, 2045, 2170, 2852, 2863, 3220, 3272, 3565, 4090, 4340, 4991, 5704, 5726, 6440, 7130, 8180, 8680, 9407, 9982, 11452, 12679, 14260, 14315, 16360, 18814, 19964, 22904, 24955, 25358, 28520, 28630, 37628, 39928, 47035, 49910, 50716, 57260, 63395, 65849, 75256, 88753, 94070, 99820, 101432, 114520, 126790, 131698, 177506, 188140, 199640, 253580, 263396, 291617, 329245, 355012, 376280, 443765, 507160, 526792, 583234, 658490, 710024, 887530, 1166468, 1316980, 1458085, 1775060, 2041319, 2332936, 2633960, 2916170, 3550120, 4082638, 5832340, 8165276, 10206595, 11664680, 16330552, 20413190, 40826380, 81652760]

約数ペア:

[(1, 81652760), (2, 40826380), (4, 20413190), (5, 16330552), (7, 11664680), (8, 10206595), (10, 8165276), (14, 5832340), (20, 4082638), (23, 3550120), (28, 2916170), (31, 2633960), (35, 2332936), (40, 2041319), (46, 1775060), (56, 1458085), (62, 1316980), (70, 1166468), (92, 887530), (115, 710024), (124, 658490), (140, 583234), (155, 526792), (161, 507160), (184, 443765), (217, 376280), (230, 355012), (248, 329245), (280, 291617), (310, 263396), (322, 253580), (409, 199640), (434, 188140), (460, 177506), (620, 131698), (644, 126790), (713, 114520), (805, 101432), (818, 99820), (868, 94070), (920, 88753), (1085, 75256), (1240, 65849), (1288, 63395), (1426, 57260), (1610, 50716), (1636, 49910), (1736, 47035), (2045, 39928), (2170, 37628), (2852, 28630), (2863, 28520), (3220, 25358), (3272, 24955), (3565, 22904), (4090, 19964), (4340, 18814), (4991, 16360), (5704, 14315), (5726, 14260), (6440, 12679), (7130, 11452), (8180, 9982), (8680, 9407)]