289308740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:250

約数の個数: 144

約数和(自身を含む): 744629760

約数和(自身を除く): 455321020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 89, 98, 107, 124, 140, 155, 178, 196, 214, 217, 245, 310, 356, 428, 434, 445, 490, 535, 620, 623, 749, 868, 890, 980, 1070, 1085, 1246, 1498, 1519, 1780, 2140, 2170, 2492, 2759, 2996, 3038, 3115, 3317, 3745, 4340, 4361, 5243, 5518, 6076, 6230, 6634, 7490, 7595, 8722, 9523, 10486, 11036, 12460, 13268, 13795, 14980, 15190, 16585, 17444, 19046, 19313, 20972, 21805, 23219, 26215, 27590, 30380, 33170, 38092, 38626, 43610, 46438, 47615, 52430, 55180, 66340, 66661, 77252, 87220, 92876, 95230, 96565, 104860, 116095, 133322, 135191, 162533, 190460, 193130, 232190, 266644, 270382, 295213, 325066, 333305, 386260, 464380, 466627, 540764, 590426, 650132, 666610, 675955, 812665, 933254, 1180852, 1333220, 1351910, 1476065, 1625330, 1866508, 2066491, 2333135, 2703820, 2952130, 3250660, 4132982, 4666270, 5904260, 8265964, 9332540, 10332455, 14465437, 20664910, 28930874, 41329820, 57861748, 72327185, 144654370, 289308740]

約数ペア:

[(1, 289308740), (2, 144654370), (4, 72327185), (5, 57861748), (7, 41329820), (10, 28930874), (14, 20664910), (20, 14465437), (28, 10332455), (31, 9332540), (35, 8265964), (49, 5904260), (62, 4666270), (70, 4132982), (89, 3250660), (98, 2952130), (107, 2703820), (124, 2333135), (140, 2066491), (155, 1866508), (178, 1625330), (196, 1476065), (214, 1351910), (217, 1333220), (245, 1180852), (310, 933254), (356, 812665), (428, 675955), (434, 666610), (445, 650132), (490, 590426), (535, 540764), (620, 466627), (623, 464380), (749, 386260), (868, 333305), (890, 325066), (980, 295213), (1070, 270382), (1085, 266644), (1246, 232190), (1498, 193130), (1519, 190460), (1780, 162533), (2140, 135191), (2170, 133322), (2492, 116095), (2759, 104860), (2996, 96565), (3038, 95230), (3115, 92876), (3317, 87220), (3745, 77252), (4340, 66661), (4361, 66340), (5243, 55180), (5518, 52430), (6076, 47615), (6230, 46438), (6634, 43610), (7490, 38626), (7595, 38092), (8722, 33170), (9523, 30380), (10486, 27590), (11036, 26215), (12460, 23219), (13268, 21805), (13795, 20972), (14980, 19313), (15190, 19046), (16585, 17444)]