15021720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{1987}}^1$

素因数の和:2014

約数の個数: 128

約数和(自身を含む): 57254400

約数和(自身を除く): 42232680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 1987, 2520, 3780, 3974, 5961, 7560, 7948, 9935, 11922, 13909, 15896, 17883, 19870, 23844, 27818, 29805, 35766, 39740, 41727, 47688, 53649, 55636, 59610, 69545, 71532, 79480, 83454, 89415, 107298, 111272, 119220, 125181, 139090, 143064, 166908, 178830, 208635, 214596, 238440, 250362, 268245, 278180, 333816, 357660, 375543, 417270, 429192, 500724, 536490, 556360, 625905, 715320, 751086, 834540, 1001448, 1072980, 1251810, 1502172, 1669080, 1877715, 2145960, 2503620, 3004344, 3755430, 5007240, 7510860, 15021720]

約数ペア:

[(1, 15021720), (2, 7510860), (3, 5007240), (4, 3755430), (5, 3004344), (6, 2503620), (7, 2145960), (8, 1877715), (9, 1669080), (10, 1502172), (12, 1251810), (14, 1072980), (15, 1001448), (18, 834540), (20, 751086), (21, 715320), (24, 625905), (27, 556360), (28, 536490), (30, 500724), (35, 429192), (36, 417270), (40, 375543), (42, 357660), (45, 333816), (54, 278180), (56, 268245), (60, 250362), (63, 238440), (70, 214596), (72, 208635), (84, 178830), (90, 166908), (105, 143064), (108, 139090), (120, 125181), (126, 119220), (135, 111272), (140, 107298), (168, 89415), (180, 83454), (189, 79480), (210, 71532), (216, 69545), (252, 59610), (270, 55636), (280, 53649), (315, 47688), (360, 41727), (378, 39740), (420, 35766), (504, 29805), (540, 27818), (630, 23844), (756, 19870), (840, 17883), (945, 15896), (1080, 13909), (1260, 11922), (1512, 9935), (1890, 7948), (1987, 7560), (2520, 5961), (3780, 3974)]