28407204

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:402

約数の個数: 144

約数和(自身を含む): 91728000

約数和(自身を除く): 63320796

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 19, 21, 28, 34, 36, 38, 42, 51, 57, 63, 68, 76, 84, 102, 114, 119, 126, 133, 153, 171, 204, 228, 238, 252, 266, 306, 323, 342, 349, 357, 399, 476, 532, 612, 646, 684, 698, 714, 798, 969, 1047, 1071, 1197, 1292, 1396, 1428, 1596, 1938, 2094, 2142, 2261, 2394, 2443, 2907, 3141, 3876, 4188, 4284, 4522, 4788, 4886, 5814, 5933, 6282, 6631, 6783, 7329, 9044, 9772, 11628, 11866, 12564, 13262, 13566, 14658, 17799, 19893, 20349, 21987, 23732, 26524, 27132, 29316, 35598, 39786, 40698, 41531, 43974, 46417, 53397, 59679, 71196, 79572, 81396, 83062, 87948, 92834, 106794, 112727, 119358, 124593, 139251, 166124, 185668, 213588, 225454, 238716, 249186, 278502, 338181, 373779, 417753, 450908, 498372, 557004, 676362, 747558, 789089, 835506, 1014543, 1352724, 1495116, 1578178, 1671012, 2029086, 2367267, 3156356, 4058172, 4734534, 7101801, 9469068, 14203602, 28407204]

約数ペア:

[(1, 28407204), (2, 14203602), (3, 9469068), (4, 7101801), (6, 4734534), (7, 4058172), (9, 3156356), (12, 2367267), (14, 2029086), (17, 1671012), (18, 1578178), (19, 1495116), (21, 1352724), (28, 1014543), (34, 835506), (36, 789089), (38, 747558), (42, 676362), (51, 557004), (57, 498372), (63, 450908), (68, 417753), (76, 373779), (84, 338181), (102, 278502), (114, 249186), (119, 238716), (126, 225454), (133, 213588), (153, 185668), (171, 166124), (204, 139251), (228, 124593), (238, 119358), (252, 112727), (266, 106794), (306, 92834), (323, 87948), (342, 83062), (349, 81396), (357, 79572), (399, 71196), (476, 59679), (532, 53397), (612, 46417), (646, 43974), (684, 41531), (698, 40698), (714, 39786), (798, 35598), (969, 29316), (1047, 27132), (1071, 26524), (1197, 23732), (1292, 21987), (1396, 20349), (1428, 19893), (1596, 17799), (1938, 14658), (2094, 13566), (2142, 13262), (2261, 12564), (2394, 11866), (2443, 11628), (2907, 9772), (3141, 9044), (3876, 7329), (4188, 6783), (4284, 6631), (4522, 6282), (4788, 5933), (4886, 5814)]