240860080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:287

約数の個数: 160

約数和(自身を含む): 636387840

約数和(自身を除く): 395527760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 31, 34, 40, 58, 62, 68, 80, 85, 116, 124, 136, 145, 155, 170, 197, 232, 248, 272, 290, 310, 340, 394, 464, 493, 496, 527, 580, 620, 680, 788, 899, 985, 986, 1054, 1160, 1240, 1360, 1576, 1798, 1970, 1972, 2108, 2320, 2465, 2480, 2635, 3152, 3349, 3596, 3940, 3944, 4216, 4495, 4930, 5270, 5713, 6107, 6698, 7192, 7880, 7888, 8432, 8990, 9860, 10540, 11426, 12214, 13396, 14384, 15283, 15760, 16745, 17980, 19720, 21080, 22852, 24428, 26792, 28565, 30535, 30566, 33490, 35960, 39440, 42160, 45704, 48856, 53584, 57130, 61070, 61132, 66980, 71920, 76415, 91408, 97121, 97712, 103819, 114260, 122140, 122264, 133960, 152830, 177103, 194242, 207638, 228520, 244280, 244528, 267920, 305660, 354206, 388484, 415276, 457040, 485605, 488560, 519095, 611320, 708412, 776968, 830552, 885515, 971210, 1038190, 1222640, 1416824, 1553936, 1661104, 1771030, 1942420, 2076380, 2833648, 3010751, 3542060, 3884840, 4152760, 6021502, 7084120, 7769680, 8305520, 12043004, 14168240, 15053755, 24086008, 30107510, 48172016, 60215020, 120430040, 240860080]

約数ペア:

[(1, 240860080), (2, 120430040), (4, 60215020), (5, 48172016), (8, 30107510), (10, 24086008), (16, 15053755), (17, 14168240), (20, 12043004), (29, 8305520), (31, 7769680), (34, 7084120), (40, 6021502), (58, 4152760), (62, 3884840), (68, 3542060), (80, 3010751), (85, 2833648), (116, 2076380), (124, 1942420), (136, 1771030), (145, 1661104), (155, 1553936), (170, 1416824), (197, 1222640), (232, 1038190), (248, 971210), (272, 885515), (290, 830552), (310, 776968), (340, 708412), (394, 611320), (464, 519095), (493, 488560), (496, 485605), (527, 457040), (580, 415276), (620, 388484), (680, 354206), (788, 305660), (899, 267920), (985, 244528), (986, 244280), (1054, 228520), (1160, 207638), (1240, 194242), (1360, 177103), (1576, 152830), (1798, 133960), (1970, 122264), (1972, 122140), (2108, 114260), (2320, 103819), (2465, 97712), (2480, 97121), (2635, 91408), (3152, 76415), (3349, 71920), (3596, 66980), (3940, 61132), (3944, 61070), (4216, 57130), (4495, 53584), (4930, 48856), (5270, 45704), (5713, 42160), (6107, 39440), (6698, 35960), (7192, 33490), (7880, 30566), (7888, 30535), (8432, 28565), (8990, 26792), (9860, 24428), (10540, 22852), (11426, 21080), (12214, 19720), (13396, 17980), (14384, 16745), (15283, 15760)]