261207550

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:514

約数の個数: 96

約数和(自身を含む): 555393024

約数和(自身を除く): 294185474

約数列:

[1, 2, 5, 10, 17, 23, 25, 31, 34, 46, 50, 62, 85, 115, 155, 170, 230, 310, 391, 425, 431, 527, 575, 713, 775, 782, 850, 862, 1054, 1150, 1426, 1550, 1955, 2155, 2635, 3565, 3910, 4310, 5270, 7130, 7327, 9775, 9913, 10775, 12121, 13175, 13361, 14654, 17825, 19550, 19826, 21550, 24242, 26350, 26722, 35650, 36635, 49565, 60605, 66805, 73270, 99130, 121210, 133610, 168521, 183175, 227137, 247825, 303025, 307303, 334025, 337042, 366350, 454274, 495650, 606050, 614606, 668050, 842605, 1135685, 1536515, 1685210, 2271370, 3073030, 4213025, 5224151, 5678425, 7682575, 8426050, 10448302, 11356850, 15365150, 26120755, 52241510, 130603775, 261207550]

約数ペア:

[(1, 261207550), (2, 130603775), (5, 52241510), (10, 26120755), (17, 15365150), (23, 11356850), (25, 10448302), (31, 8426050), (34, 7682575), (46, 5678425), (50, 5224151), (62, 4213025), (85, 3073030), (115, 2271370), (155, 1685210), (170, 1536515), (230, 1135685), (310, 842605), (391, 668050), (425, 614606), (431, 606050), (527, 495650), (575, 454274), (713, 366350), (775, 337042), (782, 334025), (850, 307303), (862, 303025), (1054, 247825), (1150, 227137), (1426, 183175), (1550, 168521), (1955, 133610), (2155, 121210), (2635, 99130), (3565, 73270), (3910, 66805), (4310, 60605), (5270, 49565), (7130, 36635), (7327, 35650), (9775, 26722), (9913, 26350), (10775, 24242), (12121, 21550), (13175, 19826), (13361, 19550), (14654, 17825)]