199675980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{22639}}^1$

素因数の和:22668

約数の個数: 108

約数和(自身を含む): 704602080

約数和(自身を除く): 504926100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 22639, 45278, 67917, 90556, 113195, 135834, 158473, 203751, 226390, 271668, 316946, 339585, 407502, 452780, 475419, 633892, 679170, 792365, 815004, 950838, 1018755, 1109311, 1358340, 1426257, 1584730, 1901676, 2037510, 2218622, 2377095, 2852514, 3169460, 3327933, 4075020, 4437244, 4754190, 5546555, 5705028, 6655866, 7131285, 9508380, 9983799, 11093110, 13311732, 14262570, 16639665, 19967598, 22186220, 28525140, 33279330, 39935196, 49918995, 66558660, 99837990, 199675980]

約数ペア:

[(1, 199675980), (2, 99837990), (3, 66558660), (4, 49918995), (5, 39935196), (6, 33279330), (7, 28525140), (9, 22186220), (10, 19967598), (12, 16639665), (14, 14262570), (15, 13311732), (18, 11093110), (20, 9983799), (21, 9508380), (28, 7131285), (30, 6655866), (35, 5705028), (36, 5546555), (42, 4754190), (45, 4437244), (49, 4075020), (60, 3327933), (63, 3169460), (70, 2852514), (84, 2377095), (90, 2218622), (98, 2037510), (105, 1901676), (126, 1584730), (140, 1426257), (147, 1358340), (180, 1109311), (196, 1018755), (210, 950838), (245, 815004), (252, 792365), (294, 679170), (315, 633892), (420, 475419), (441, 452780), (490, 407502), (588, 339585), (630, 316946), (735, 271668), (882, 226390), (980, 203751), (1260, 158473), (1470, 135834), (1764, 113195), (2205, 90556), (2940, 67917), (4410, 45278), (8820, 22639)]