128213960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{463}}^1$

素因数の和:547

約数の個数: 128

約数和(自身を含む): 352788480

約数和(自身を除く): 224574520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 43, 46, 56, 70, 86, 92, 115, 140, 161, 172, 184, 215, 230, 280, 301, 322, 344, 430, 460, 463, 602, 644, 805, 860, 920, 926, 989, 1204, 1288, 1505, 1610, 1720, 1852, 1978, 2315, 2408, 3010, 3220, 3241, 3704, 3956, 4630, 4945, 6020, 6440, 6482, 6923, 7912, 9260, 9890, 10649, 12040, 12964, 13846, 16205, 18520, 19780, 19909, 21298, 25928, 27692, 32410, 34615, 39560, 39818, 42596, 53245, 55384, 64820, 69230, 74543, 79636, 85192, 99545, 106490, 129640, 138460, 139363, 149086, 159272, 199090, 212980, 276920, 278726, 298172, 372715, 398180, 425960, 457907, 557452, 596344, 696815, 745430, 796360, 915814, 1114904, 1393630, 1490860, 1831628, 2289535, 2787260, 2981720, 3205349, 3663256, 4579070, 5574520, 6410698, 9158140, 12821396, 16026745, 18316280, 25642792, 32053490, 64106980, 128213960]

約数ペア:

[(1, 128213960), (2, 64106980), (4, 32053490), (5, 25642792), (7, 18316280), (8, 16026745), (10, 12821396), (14, 9158140), (20, 6410698), (23, 5574520), (28, 4579070), (35, 3663256), (40, 3205349), (43, 2981720), (46, 2787260), (56, 2289535), (70, 1831628), (86, 1490860), (92, 1393630), (115, 1114904), (140, 915814), (161, 796360), (172, 745430), (184, 696815), (215, 596344), (230, 557452), (280, 457907), (301, 425960), (322, 398180), (344, 372715), (430, 298172), (460, 278726), (463, 276920), (602, 212980), (644, 199090), (805, 159272), (860, 149086), (920, 139363), (926, 138460), (989, 129640), (1204, 106490), (1288, 99545), (1505, 85192), (1610, 79636), (1720, 74543), (1852, 69230), (1978, 64820), (2315, 55384), (2408, 53245), (3010, 42596), (3220, 39818), (3241, 39560), (3704, 34615), (3956, 32410), (4630, 27692), (4945, 25928), (6020, 21298), (6440, 19909), (6482, 19780), (6923, 18520), (7912, 16205), (9260, 13846), (9890, 12964), (10649, 12040)]