208523980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2089}}^1$

素因数の和:2159

約数の個数: 96

約数和(自身を含む): 539320320

約数和(自身を除く): 330796340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 62, 70, 92, 115, 124, 140, 155, 161, 217, 230, 310, 322, 434, 460, 620, 644, 713, 805, 868, 1085, 1426, 1610, 2089, 2170, 2852, 3220, 3565, 4178, 4340, 4991, 7130, 8356, 9982, 10445, 14260, 14623, 19964, 20890, 24955, 29246, 41780, 48047, 49910, 58492, 64759, 73115, 96094, 99820, 129518, 146230, 192188, 240235, 259036, 292460, 323795, 336329, 453313, 480470, 647590, 672658, 906626, 960940, 1295180, 1345316, 1489457, 1681645, 1813252, 2266565, 2978914, 3363290, 4533130, 5957828, 6726580, 7447285, 9066260, 10426199, 14894570, 20852398, 29789140, 41704796, 52130995, 104261990, 208523980]

約数ペア:

[(1, 208523980), (2, 104261990), (4, 52130995), (5, 41704796), (7, 29789140), (10, 20852398), (14, 14894570), (20, 10426199), (23, 9066260), (28, 7447285), (31, 6726580), (35, 5957828), (46, 4533130), (62, 3363290), (70, 2978914), (92, 2266565), (115, 1813252), (124, 1681645), (140, 1489457), (155, 1345316), (161, 1295180), (217, 960940), (230, 906626), (310, 672658), (322, 647590), (434, 480470), (460, 453313), (620, 336329), (644, 323795), (713, 292460), (805, 259036), (868, 240235), (1085, 192188), (1426, 146230), (1610, 129518), (2089, 99820), (2170, 96094), (2852, 73115), (3220, 64759), (3565, 58492), (4178, 49910), (4340, 48047), (4991, 41780), (7130, 29246), (8356, 24955), (9982, 20890), (10445, 19964), (14260, 14623)]