309965240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:409

約数の個数: 128

約数和(自身を含む): 799848000

約数和(自身を除く): 489882760

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 137, 152, 190, 229, 247, 260, 274, 380, 458, 494, 520, 548, 685, 760, 916, 988, 1096, 1145, 1235, 1370, 1781, 1832, 1976, 2290, 2470, 2603, 2740, 2977, 3562, 4351, 4580, 4940, 5206, 5480, 5954, 7124, 8702, 8905, 9160, 9880, 10412, 11908, 13015, 14248, 14885, 17404, 17810, 20824, 21755, 23816, 26030, 29770, 31373, 33839, 34808, 35620, 43510, 52060, 56563, 59540, 62746, 67678, 71240, 87020, 104120, 113126, 119080, 125492, 135356, 156865, 169195, 174040, 226252, 250984, 270712, 282815, 313730, 338390, 407849, 452504, 565630, 596087, 627460, 676780, 815698, 1131260, 1192174, 1254920, 1353560, 1631396, 2039245, 2262520, 2384348, 2980435, 3262792, 4078490, 4768696, 5960870, 7749131, 8156980, 11921740, 15498262, 16313960, 23843480, 30996524, 38745655, 61993048, 77491310, 154982620, 309965240]

約数ペア:

[(1, 309965240), (2, 154982620), (4, 77491310), (5, 61993048), (8, 38745655), (10, 30996524), (13, 23843480), (19, 16313960), (20, 15498262), (26, 11921740), (38, 8156980), (40, 7749131), (52, 5960870), (65, 4768696), (76, 4078490), (95, 3262792), (104, 2980435), (130, 2384348), (137, 2262520), (152, 2039245), (190, 1631396), (229, 1353560), (247, 1254920), (260, 1192174), (274, 1131260), (380, 815698), (458, 676780), (494, 627460), (520, 596087), (548, 565630), (685, 452504), (760, 407849), (916, 338390), (988, 313730), (1096, 282815), (1145, 270712), (1235, 250984), (1370, 226252), (1781, 174040), (1832, 169195), (1976, 156865), (2290, 135356), (2470, 125492), (2603, 119080), (2740, 113126), (2977, 104120), (3562, 87020), (4351, 71240), (4580, 67678), (4940, 62746), (5206, 59540), (5480, 56563), (5954, 52060), (7124, 43510), (8702, 35620), (8905, 34808), (9160, 33839), (9880, 31373), (10412, 29770), (11908, 26030), (13015, 23816), (14248, 21755), (14885, 20824), (17404, 17810)]