28643760

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:260

約数の個数: 160

約数和(自身を含む): 100440000

約数和(自身を除く): 71796240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 89, 90, 108, 120, 135, 144, 149, 178, 180, 216, 240, 267, 270, 298, 356, 360, 432, 445, 447, 534, 540, 596, 712, 720, 745, 801, 890, 894, 1068, 1080, 1192, 1335, 1341, 1424, 1490, 1602, 1780, 1788, 2136, 2160, 2235, 2384, 2403, 2670, 2682, 2980, 3204, 3560, 3576, 4005, 4023, 4272, 4470, 4806, 5340, 5364, 5960, 6408, 6705, 7120, 7152, 8010, 8046, 8940, 9612, 10680, 10728, 11920, 12015, 12816, 13261, 13410, 16020, 16092, 17880, 19224, 20115, 21360, 21456, 24030, 26522, 26820, 32040, 32184, 35760, 38448, 39783, 40230, 48060, 53044, 53640, 64080, 64368, 66305, 79566, 80460, 96120, 106088, 107280, 119349, 132610, 159132, 160920, 192240, 198915, 212176, 238698, 265220, 318264, 321840, 358047, 397830, 477396, 530440, 596745, 636528, 716094, 795660, 954792, 1060880, 1193490, 1432188, 1591320, 1790235, 1909584, 2386980, 2864376, 3182640, 3580470, 4773960, 5728752, 7160940, 9547920, 14321880, 28643760]

約数ペア:

[(1, 28643760), (2, 14321880), (3, 9547920), (4, 7160940), (5, 5728752), (6, 4773960), (8, 3580470), (9, 3182640), (10, 2864376), (12, 2386980), (15, 1909584), (16, 1790235), (18, 1591320), (20, 1432188), (24, 1193490), (27, 1060880), (30, 954792), (36, 795660), (40, 716094), (45, 636528), (48, 596745), (54, 530440), (60, 477396), (72, 397830), (80, 358047), (89, 321840), (90, 318264), (108, 265220), (120, 238698), (135, 212176), (144, 198915), (149, 192240), (178, 160920), (180, 159132), (216, 132610), (240, 119349), (267, 107280), (270, 106088), (298, 96120), (356, 80460), (360, 79566), (432, 66305), (445, 64368), (447, 64080), (534, 53640), (540, 53044), (596, 48060), (712, 40230), (720, 39783), (745, 38448), (801, 35760), (890, 32184), (894, 32040), (1068, 26820), (1080, 26522), (1192, 24030), (1335, 21456), (1341, 21360), (1424, 20115), (1490, 19224), (1602, 17880), (1780, 16092), (1788, 16020), (2136, 13410), (2160, 13261), (2235, 12816), (2384, 12015), (2403, 11920), (2670, 10728), (2682, 10680), (2980, 9612), (3204, 8940), (3560, 8046), (3576, 8010), (4005, 7152), (4023, 7120), (4272, 6705), (4470, 6408), (4806, 5960), (5340, 5364)]