309392440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:365

約数の個数: 128

約数和(自身を含む): 821145600

約数和(自身を除く): 511753160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 79, 140, 142, 158, 197, 280, 284, 316, 355, 394, 395, 497, 553, 568, 632, 710, 788, 790, 985, 994, 1106, 1379, 1420, 1576, 1580, 1970, 1988, 2212, 2485, 2758, 2765, 2840, 3160, 3940, 3976, 4424, 4970, 5516, 5530, 5609, 6895, 7880, 9940, 11032, 11060, 11218, 13790, 13987, 15563, 19880, 22120, 22436, 27580, 27974, 28045, 31126, 39263, 44872, 55160, 55948, 56090, 62252, 69935, 77815, 78526, 97909, 108941, 111896, 112180, 124504, 139870, 155630, 157052, 195818, 196315, 217882, 224360, 279740, 311260, 314104, 391636, 392630, 435764, 489545, 544705, 559480, 622520, 783272, 785260, 871528, 979090, 1089410, 1104973, 1570520, 1958180, 2178820, 2209946, 3916360, 4357640, 4419892, 5524865, 7734811, 8839784, 11049730, 15469622, 22099460, 30939244, 38674055, 44198920, 61878488, 77348110, 154696220, 309392440]

約数ペア:

[(1, 309392440), (2, 154696220), (4, 77348110), (5, 61878488), (7, 44198920), (8, 38674055), (10, 30939244), (14, 22099460), (20, 15469622), (28, 11049730), (35, 8839784), (40, 7734811), (56, 5524865), (70, 4419892), (71, 4357640), (79, 3916360), (140, 2209946), (142, 2178820), (158, 1958180), (197, 1570520), (280, 1104973), (284, 1089410), (316, 979090), (355, 871528), (394, 785260), (395, 783272), (497, 622520), (553, 559480), (568, 544705), (632, 489545), (710, 435764), (788, 392630), (790, 391636), (985, 314104), (994, 311260), (1106, 279740), (1379, 224360), (1420, 217882), (1576, 196315), (1580, 195818), (1970, 157052), (1988, 155630), (2212, 139870), (2485, 124504), (2758, 112180), (2765, 111896), (2840, 108941), (3160, 97909), (3940, 78526), (3976, 77815), (4424, 69935), (4970, 62252), (5516, 56090), (5530, 55948), (5609, 55160), (6895, 44872), (7880, 39263), (9940, 31126), (11032, 28045), (11060, 27974), (11218, 27580), (13790, 22436), (13987, 22120), (15563, 19880)]