87850280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:427

約数の個数: 128

約数和(自身を含む): 241920000

約数和(自身を除く): 154069720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 31, 35, 40, 56, 58, 62, 70, 116, 124, 140, 145, 155, 203, 217, 232, 248, 280, 290, 310, 349, 406, 434, 580, 620, 698, 812, 868, 899, 1015, 1085, 1160, 1240, 1396, 1624, 1736, 1745, 1798, 2030, 2170, 2443, 2792, 3490, 3596, 4060, 4340, 4495, 4886, 6293, 6980, 7192, 8120, 8680, 8990, 9772, 10121, 10819, 12215, 12586, 13960, 17980, 19544, 20242, 21638, 24430, 25172, 31465, 35960, 40484, 43276, 48860, 50344, 50605, 54095, 62930, 70847, 75733, 80968, 86552, 97720, 101210, 108190, 125860, 141694, 151466, 202420, 216380, 251720, 283388, 302932, 313751, 354235, 378665, 404840, 432760, 566776, 605864, 627502, 708470, 757330, 1255004, 1416940, 1514660, 1568755, 2196257, 2510008, 2833880, 3029320, 3137510, 4392514, 6275020, 8785028, 10981285, 12550040, 17570056, 21962570, 43925140, 87850280]

約数ペア:

[(1, 87850280), (2, 43925140), (4, 21962570), (5, 17570056), (7, 12550040), (8, 10981285), (10, 8785028), (14, 6275020), (20, 4392514), (28, 3137510), (29, 3029320), (31, 2833880), (35, 2510008), (40, 2196257), (56, 1568755), (58, 1514660), (62, 1416940), (70, 1255004), (116, 757330), (124, 708470), (140, 627502), (145, 605864), (155, 566776), (203, 432760), (217, 404840), (232, 378665), (248, 354235), (280, 313751), (290, 302932), (310, 283388), (349, 251720), (406, 216380), (434, 202420), (580, 151466), (620, 141694), (698, 125860), (812, 108190), (868, 101210), (899, 97720), (1015, 86552), (1085, 80968), (1160, 75733), (1240, 70847), (1396, 62930), (1624, 54095), (1736, 50605), (1745, 50344), (1798, 48860), (2030, 43276), (2170, 40484), (2443, 35960), (2792, 31465), (3490, 25172), (3596, 24430), (4060, 21638), (4340, 20242), (4495, 19544), (4886, 17980), (6293, 13960), (6980, 12586), (7192, 12215), (8120, 10819), (8680, 10121), (8990, 9772)]