28730268

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:177

約数の個数: 144

約数和(自身を含む): 89056800

約数和(自身を除く): 60326532

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 61, 63, 84, 89, 98, 108, 122, 126, 147, 178, 183, 189, 196, 244, 252, 267, 294, 356, 366, 378, 427, 441, 534, 549, 588, 623, 732, 756, 801, 854, 882, 1068, 1098, 1246, 1281, 1323, 1602, 1647, 1708, 1764, 1869, 2196, 2403, 2492, 2562, 2646, 2989, 3204, 3294, 3738, 3843, 4361, 4806, 5124, 5292, 5429, 5607, 5978, 6588, 7476, 7686, 8722, 8967, 9612, 10858, 11214, 11529, 11956, 13083, 15372, 16287, 16821, 17444, 17934, 21716, 22428, 23058, 26166, 26901, 32574, 33642, 35868, 38003, 39249, 46116, 48861, 52332, 53802, 65148, 67284, 76006, 78498, 80703, 97722, 107604, 114009, 117747, 146583, 152012, 156996, 161406, 195444, 228018, 235494, 266021, 293166, 322812, 342027, 456036, 470988, 532042, 586332, 684054, 798063, 1026081, 1064084, 1368108, 1596126, 2052162, 2394189, 3192252, 4104324, 4788378, 7182567, 9576756, 14365134, 28730268]

約数ペア:

[(1, 28730268), (2, 14365134), (3, 9576756), (4, 7182567), (6, 4788378), (7, 4104324), (9, 3192252), (12, 2394189), (14, 2052162), (18, 1596126), (21, 1368108), (27, 1064084), (28, 1026081), (36, 798063), (42, 684054), (49, 586332), (54, 532042), (61, 470988), (63, 456036), (84, 342027), (89, 322812), (98, 293166), (108, 266021), (122, 235494), (126, 228018), (147, 195444), (178, 161406), (183, 156996), (189, 152012), (196, 146583), (244, 117747), (252, 114009), (267, 107604), (294, 97722), (356, 80703), (366, 78498), (378, 76006), (427, 67284), (441, 65148), (534, 53802), (549, 52332), (588, 48861), (623, 46116), (732, 39249), (756, 38003), (801, 35868), (854, 33642), (882, 32574), (1068, 26901), (1098, 26166), (1246, 23058), (1281, 22428), (1323, 21716), (1602, 17934), (1647, 17444), (1708, 16821), (1764, 16287), (1869, 15372), (2196, 13083), (2403, 11956), (2492, 11529), (2562, 11214), (2646, 10858), (2989, 9612), (3204, 8967), (3294, 8722), (3738, 7686), (3843, 7476), (4361, 6588), (4806, 5978), (5124, 5607), (5292, 5429)]