427400720

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 160

約数和(自身を含む): 1097072640

約数和(自身を除く): 669671920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 40, 46, 59, 62, 80, 92, 115, 118, 124, 127, 155, 184, 230, 236, 248, 254, 295, 310, 368, 460, 472, 496, 508, 590, 620, 635, 713, 920, 944, 1016, 1180, 1240, 1270, 1357, 1426, 1829, 1840, 2032, 2360, 2480, 2540, 2714, 2852, 2921, 3565, 3658, 3937, 4720, 5080, 5428, 5704, 5842, 6785, 7130, 7316, 7493, 7874, 9145, 10160, 10856, 11408, 11684, 13570, 14260, 14605, 14632, 14986, 15748, 18290, 19685, 21712, 23368, 27140, 28520, 29210, 29264, 29972, 31496, 36580, 37465, 39370, 42067, 46736, 54280, 57040, 58420, 59944, 62992, 73160, 74930, 78740, 84134, 90551, 108560, 116840, 119888, 146320, 149860, 157480, 168268, 172339, 181102, 210335, 232283, 233680, 299720, 314960, 336536, 344678, 362204, 420670, 452755, 464566, 599440, 673072, 689356, 724408, 841340, 861695, 905510, 929132, 1161415, 1378712, 1448816, 1682680, 1723390, 1811020, 1858264, 2322830, 2757424, 3365360, 3446780, 3622040, 3716528, 4645660, 5342509, 6893560, 7244080, 9291320, 10685018, 13787120, 18582640, 21370036, 26712545, 42740072, 53425090, 85480144, 106850180, 213700360, 427400720]

約数ペア:

[(1, 427400720), (2, 213700360), (4, 106850180), (5, 85480144), (8, 53425090), (10, 42740072), (16, 26712545), (20, 21370036), (23, 18582640), (31, 13787120), (40, 10685018), (46, 9291320), (59, 7244080), (62, 6893560), (80, 5342509), (92, 4645660), (115, 3716528), (118, 3622040), (124, 3446780), (127, 3365360), (155, 2757424), (184, 2322830), (230, 1858264), (236, 1811020), (248, 1723390), (254, 1682680), (295, 1448816), (310, 1378712), (368, 1161415), (460, 929132), (472, 905510), (496, 861695), (508, 841340), (590, 724408), (620, 689356), (635, 673072), (713, 599440), (920, 464566), (944, 452755), (1016, 420670), (1180, 362204), (1240, 344678), (1270, 336536), (1357, 314960), (1426, 299720), (1829, 233680), (1840, 232283), (2032, 210335), (2360, 181102), (2480, 172339), (2540, 168268), (2714, 157480), (2852, 149860), (2921, 146320), (3565, 119888), (3658, 116840), (3937, 108560), (4720, 90551), (5080, 84134), (5428, 78740), (5704, 74930), (5842, 73160), (6785, 62992), (7130, 59944), (7316, 58420), (7493, 57040), (7874, 54280), (9145, 46736), (10160, 42067), (10856, 39370), (11408, 37465), (11684, 36580), (13570, 31496), (14260, 29972), (14605, 29264), (14632, 29210), (14986, 28520), (15748, 27140), (18290, 23368), (19685, 21712)]