28298340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{607}}^1$

素因数の和:666

約数の個数: 144

約数和(自身を含む): 100918272

約数和(自身を除く): 72619932

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 60, 63, 70, 74, 84, 90, 105, 111, 126, 140, 148, 180, 185, 210, 222, 252, 259, 315, 333, 370, 420, 444, 518, 555, 607, 630, 666, 740, 777, 1036, 1110, 1214, 1260, 1295, 1332, 1554, 1665, 1821, 2220, 2331, 2428, 2590, 3035, 3108, 3330, 3642, 3885, 4249, 4662, 5180, 5463, 6070, 6660, 7284, 7770, 8498, 9105, 9324, 10926, 11655, 12140, 12747, 15540, 16996, 18210, 21245, 21852, 22459, 23310, 25494, 27315, 36420, 38241, 42490, 44918, 46620, 50988, 54630, 63735, 67377, 76482, 84980, 89836, 109260, 112295, 127470, 134754, 152964, 157213, 191205, 202131, 224590, 254940, 269508, 314426, 336885, 382410, 404262, 449180, 471639, 628852, 673770, 764820, 786065, 808524, 943278, 1010655, 1347540, 1414917, 1572130, 1886556, 2021310, 2358195, 2829834, 3144260, 4042620, 4716390, 5659668, 7074585, 9432780, 14149170, 28298340]

約数ペア:

[(1, 28298340), (2, 14149170), (3, 9432780), (4, 7074585), (5, 5659668), (6, 4716390), (7, 4042620), (9, 3144260), (10, 2829834), (12, 2358195), (14, 2021310), (15, 1886556), (18, 1572130), (20, 1414917), (21, 1347540), (28, 1010655), (30, 943278), (35, 808524), (36, 786065), (37, 764820), (42, 673770), (45, 628852), (60, 471639), (63, 449180), (70, 404262), (74, 382410), (84, 336885), (90, 314426), (105, 269508), (111, 254940), (126, 224590), (140, 202131), (148, 191205), (180, 157213), (185, 152964), (210, 134754), (222, 127470), (252, 112295), (259, 109260), (315, 89836), (333, 84980), (370, 76482), (420, 67377), (444, 63735), (518, 54630), (555, 50988), (607, 46620), (630, 44918), (666, 42490), (740, 38241), (777, 36420), (1036, 27315), (1110, 25494), (1214, 23310), (1260, 22459), (1295, 21852), (1332, 21245), (1554, 18210), (1665, 16996), (1821, 15540), (2220, 12747), (2331, 12140), (2428, 11655), (2590, 10926), (3035, 9324), (3108, 9105), (3330, 8498), (3642, 7770), (3885, 7284), (4249, 6660), (4662, 6070), (5180, 5463)]