155747720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:235

約数の個数: 128

約数和(自身を含む): 389283840

約数和(自身を除く): 233536120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 43, 46, 62, 86, 92, 115, 124, 127, 155, 172, 184, 215, 230, 248, 254, 310, 344, 430, 460, 508, 620, 635, 713, 860, 920, 989, 1016, 1240, 1270, 1333, 1426, 1720, 1978, 2540, 2666, 2852, 2921, 3565, 3937, 3956, 4945, 5080, 5332, 5461, 5704, 5842, 6665, 7130, 7874, 7912, 9890, 10664, 10922, 11684, 13330, 14260, 14605, 15748, 19685, 19780, 21844, 23368, 26660, 27305, 28520, 29210, 30659, 31496, 39370, 39560, 43688, 53320, 54610, 58420, 61318, 78740, 90551, 109220, 116840, 122636, 125603, 153295, 157480, 169291, 181102, 218440, 245272, 251206, 306590, 338582, 362204, 452755, 502412, 613180, 628015, 677164, 724408, 846455, 905510, 1004824, 1226360, 1256030, 1354328, 1692910, 1811020, 2512060, 3385820, 3622040, 3893693, 5024120, 6771640, 7787386, 15574772, 19468465, 31149544, 38936930, 77873860, 155747720]

約数ペア:

[(1, 155747720), (2, 77873860), (4, 38936930), (5, 31149544), (8, 19468465), (10, 15574772), (20, 7787386), (23, 6771640), (31, 5024120), (40, 3893693), (43, 3622040), (46, 3385820), (62, 2512060), (86, 1811020), (92, 1692910), (115, 1354328), (124, 1256030), (127, 1226360), (155, 1004824), (172, 905510), (184, 846455), (215, 724408), (230, 677164), (248, 628015), (254, 613180), (310, 502412), (344, 452755), (430, 362204), (460, 338582), (508, 306590), (620, 251206), (635, 245272), (713, 218440), (860, 181102), (920, 169291), (989, 157480), (1016, 153295), (1240, 125603), (1270, 122636), (1333, 116840), (1426, 109220), (1720, 90551), (1978, 78740), (2540, 61318), (2666, 58420), (2852, 54610), (2921, 53320), (3565, 43688), (3937, 39560), (3956, 39370), (4945, 31496), (5080, 30659), (5332, 29210), (5461, 28520), (5704, 27305), (5842, 26660), (6665, 23368), (7130, 21844), (7874, 19780), (7912, 19685), (9890, 15748), (10664, 14605), (10922, 14260), (11684, 13330)]