243389680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:335

約数の個数: 160

約数和(自身を含む): 647958528

約数和(自身を除く): 404568848

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 31, 34, 40, 46, 62, 68, 80, 85, 92, 115, 124, 136, 155, 170, 184, 230, 248, 251, 272, 310, 340, 368, 391, 460, 496, 502, 527, 620, 680, 713, 782, 920, 1004, 1054, 1240, 1255, 1360, 1426, 1564, 1840, 1955, 2008, 2108, 2480, 2510, 2635, 2852, 3128, 3565, 3910, 4016, 4216, 4267, 5020, 5270, 5704, 5773, 6256, 7130, 7781, 7820, 8432, 8534, 10040, 10540, 11408, 11546, 12121, 14260, 15562, 15640, 17068, 20080, 21080, 21335, 23092, 24242, 28520, 28865, 31124, 31280, 34136, 38905, 42160, 42670, 46184, 48484, 57040, 57730, 60605, 62248, 68272, 77810, 85340, 92368, 96968, 98141, 115460, 121210, 124496, 132277, 155620, 170680, 178963, 193936, 196282, 230920, 242420, 264554, 311240, 341360, 357926, 392564, 461840, 484840, 490705, 529108, 622480, 661385, 715852, 785128, 894815, 969680, 981410, 1058216, 1322770, 1431704, 1570256, 1789630, 1962820, 2116432, 2645540, 2863408, 3042371, 3579260, 3925640, 5291080, 6084742, 7158520, 7851280, 10582160, 12169484, 14317040, 15211855, 24338968, 30423710, 48677936, 60847420, 121694840, 243389680]

約数ペア:

[(1, 243389680), (2, 121694840), (4, 60847420), (5, 48677936), (8, 30423710), (10, 24338968), (16, 15211855), (17, 14317040), (20, 12169484), (23, 10582160), (31, 7851280), (34, 7158520), (40, 6084742), (46, 5291080), (62, 3925640), (68, 3579260), (80, 3042371), (85, 2863408), (92, 2645540), (115, 2116432), (124, 1962820), (136, 1789630), (155, 1570256), (170, 1431704), (184, 1322770), (230, 1058216), (248, 981410), (251, 969680), (272, 894815), (310, 785128), (340, 715852), (368, 661385), (391, 622480), (460, 529108), (496, 490705), (502, 484840), (527, 461840), (620, 392564), (680, 357926), (713, 341360), (782, 311240), (920, 264554), (1004, 242420), (1054, 230920), (1240, 196282), (1255, 193936), (1360, 178963), (1426, 170680), (1564, 155620), (1840, 132277), (1955, 124496), (2008, 121210), (2108, 115460), (2480, 98141), (2510, 96968), (2635, 92368), (2852, 85340), (3128, 77810), (3565, 68272), (3910, 62248), (4016, 60605), (4216, 57730), (4267, 57040), (5020, 48484), (5270, 46184), (5704, 42670), (5773, 42160), (6256, 38905), (7130, 34136), (7781, 31280), (7820, 31124), (8432, 28865), (8534, 28520), (10040, 24242), (10540, 23092), (11408, 21335), (11546, 21080), (12121, 20080), (14260, 17068), (15562, 15640)]