28380996

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:231

約数の個数: 144

約数和(自身を含む): 88865280

約数和(自身を除く): 60484284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 31, 36, 42, 49, 54, 62, 63, 84, 93, 98, 108, 124, 126, 147, 173, 186, 189, 196, 217, 252, 279, 294, 346, 372, 378, 434, 441, 519, 558, 588, 651, 692, 756, 837, 868, 882, 1038, 1116, 1211, 1302, 1323, 1519, 1557, 1674, 1764, 1953, 2076, 2422, 2604, 2646, 3038, 3114, 3348, 3633, 3906, 4557, 4671, 4844, 5292, 5363, 5859, 6076, 6228, 7266, 7812, 8477, 9114, 9342, 10726, 10899, 11718, 13671, 14532, 16089, 16954, 18228, 18684, 21452, 21798, 23436, 25431, 27342, 32178, 32697, 33908, 37541, 41013, 43596, 48267, 50862, 54684, 64356, 65394, 75082, 76293, 82026, 96534, 101724, 112623, 130788, 144801, 150164, 152586, 164052, 193068, 225246, 228879, 262787, 289602, 305172, 337869, 450492, 457758, 525574, 579204, 675738, 788361, 915516, 1013607, 1051148, 1351476, 1576722, 2027214, 2365083, 3153444, 4054428, 4730166, 7095249, 9460332, 14190498, 28380996]

約数ペア:

[(1, 28380996), (2, 14190498), (3, 9460332), (4, 7095249), (6, 4730166), (7, 4054428), (9, 3153444), (12, 2365083), (14, 2027214), (18, 1576722), (21, 1351476), (27, 1051148), (28, 1013607), (31, 915516), (36, 788361), (42, 675738), (49, 579204), (54, 525574), (62, 457758), (63, 450492), (84, 337869), (93, 305172), (98, 289602), (108, 262787), (124, 228879), (126, 225246), (147, 193068), (173, 164052), (186, 152586), (189, 150164), (196, 144801), (217, 130788), (252, 112623), (279, 101724), (294, 96534), (346, 82026), (372, 76293), (378, 75082), (434, 65394), (441, 64356), (519, 54684), (558, 50862), (588, 48267), (651, 43596), (692, 41013), (756, 37541), (837, 33908), (868, 32697), (882, 32178), (1038, 27342), (1116, 25431), (1211, 23436), (1302, 21798), (1323, 21452), (1519, 18684), (1557, 18228), (1674, 16954), (1764, 16089), (1953, 14532), (2076, 13671), (2422, 11718), (2604, 10899), (2646, 10726), (3038, 9342), (3114, 9114), (3348, 8477), (3633, 7812), (3906, 7266), (4557, 6228), (4671, 6076), (4844, 5859), (5292, 5363)]