28901964

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:252

約数の個数: 144

約数和(自身を含む): 89376000

約数和(自身を除く): 60474036

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 19, 21, 26, 28, 38, 39, 42, 49, 52, 57, 76, 78, 84, 91, 98, 114, 133, 147, 156, 182, 196, 199, 228, 247, 266, 273, 294, 364, 398, 399, 494, 532, 546, 588, 597, 637, 741, 796, 798, 931, 988, 1092, 1194, 1274, 1393, 1482, 1596, 1729, 1862, 1911, 2388, 2548, 2587, 2786, 2793, 2964, 3458, 3724, 3781, 3822, 4179, 5174, 5187, 5572, 5586, 6916, 7562, 7644, 7761, 8358, 9751, 10348, 10374, 11172, 11343, 12103, 15124, 15522, 16716, 18109, 19502, 20748, 22686, 24206, 26467, 29253, 31044, 36218, 36309, 39004, 45372, 48412, 49153, 52934, 54327, 58506, 72436, 72618, 79401, 98306, 105868, 108654, 117012, 126763, 145236, 147459, 158802, 185269, 196612, 217308, 253526, 294918, 317604, 344071, 370538, 380289, 507052, 555807, 589836, 688142, 741076, 760578, 1032213, 1111614, 1376284, 1521156, 2064426, 2223228, 2408497, 4128852, 4816994, 7225491, 9633988, 14450982, 28901964]

約数ペア:

[(1, 28901964), (2, 14450982), (3, 9633988), (4, 7225491), (6, 4816994), (7, 4128852), (12, 2408497), (13, 2223228), (14, 2064426), (19, 1521156), (21, 1376284), (26, 1111614), (28, 1032213), (38, 760578), (39, 741076), (42, 688142), (49, 589836), (52, 555807), (57, 507052), (76, 380289), (78, 370538), (84, 344071), (91, 317604), (98, 294918), (114, 253526), (133, 217308), (147, 196612), (156, 185269), (182, 158802), (196, 147459), (199, 145236), (228, 126763), (247, 117012), (266, 108654), (273, 105868), (294, 98306), (364, 79401), (398, 72618), (399, 72436), (494, 58506), (532, 54327), (546, 52934), (588, 49153), (597, 48412), (637, 45372), (741, 39004), (796, 36309), (798, 36218), (931, 31044), (988, 29253), (1092, 26467), (1194, 24206), (1274, 22686), (1393, 20748), (1482, 19502), (1596, 18109), (1729, 16716), (1862, 15522), (1911, 15124), (2388, 12103), (2548, 11343), (2587, 11172), (2786, 10374), (2793, 10348), (2964, 9751), (3458, 8358), (3724, 7761), (3781, 7644), (3822, 7562), (4179, 6916), (5174, 5586), (5187, 5572)]