28456680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1783}}^1$

素因数の和:1823

約数の個数: 128

約数和(自身を含む): 102758400

約数和(自身を除く): 74301720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1783, 1995, 2280, 2660, 3192, 3566, 3990, 5320, 5349, 7132, 7980, 8915, 10698, 12481, 14264, 15960, 17830, 21396, 24962, 26745, 33877, 35660, 37443, 42792, 49924, 53490, 62405, 67754, 71320, 74886, 99848, 101631, 106980, 124810, 135508, 149772, 169385, 187215, 203262, 213960, 237139, 249620, 271016, 299544, 338770, 374430, 406524, 474278, 499240, 508155, 677540, 711417, 748860, 813048, 948556, 1016310, 1185695, 1355080, 1422834, 1497720, 1897112, 2032620, 2371390, 2845668, 3557085, 4065240, 4742780, 5691336, 7114170, 9485560, 14228340, 28456680]

約数ペア:

[(1, 28456680), (2, 14228340), (3, 9485560), (4, 7114170), (5, 5691336), (6, 4742780), (7, 4065240), (8, 3557085), (10, 2845668), (12, 2371390), (14, 2032620), (15, 1897112), (19, 1497720), (20, 1422834), (21, 1355080), (24, 1185695), (28, 1016310), (30, 948556), (35, 813048), (38, 748860), (40, 711417), (42, 677540), (56, 508155), (57, 499240), (60, 474278), (70, 406524), (76, 374430), (84, 338770), (95, 299544), (105, 271016), (114, 249620), (120, 237139), (133, 213960), (140, 203262), (152, 187215), (168, 169385), (190, 149772), (210, 135508), (228, 124810), (266, 106980), (280, 101631), (285, 99848), (380, 74886), (399, 71320), (420, 67754), (456, 62405), (532, 53490), (570, 49924), (665, 42792), (760, 37443), (798, 35660), (840, 33877), (1064, 26745), (1140, 24962), (1330, 21396), (1596, 17830), (1783, 15960), (1995, 14264), (2280, 12481), (2660, 10698), (3192, 8915), (3566, 7980), (3990, 7132), (5320, 5349)]