78247960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 211115520

約数和(自身を除く): 132867560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 67, 70, 86, 97, 134, 140, 172, 194, 215, 268, 280, 301, 335, 344, 388, 430, 469, 485, 536, 602, 670, 679, 776, 860, 938, 970, 1204, 1340, 1358, 1505, 1720, 1876, 1940, 2345, 2408, 2680, 2716, 2881, 3010, 3395, 3752, 3880, 4171, 4690, 5432, 5762, 6020, 6499, 6790, 8342, 9380, 11524, 12040, 12998, 13580, 14405, 16684, 18760, 20167, 20855, 23048, 25996, 27160, 28810, 29197, 32495, 33368, 40334, 41710, 45493, 51992, 57620, 58394, 64990, 80668, 83420, 90986, 100835, 115240, 116788, 129980, 145985, 161336, 166840, 181972, 201670, 227465, 233576, 259960, 279457, 291970, 363944, 403340, 454930, 558914, 583940, 806680, 909860, 1117828, 1167880, 1397285, 1819720, 1956199, 2235656, 2794570, 3912398, 5589140, 7824796, 9780995, 11178280, 15649592, 19561990, 39123980, 78247960]

約数ペア:

[(1, 78247960), (2, 39123980), (4, 19561990), (5, 15649592), (7, 11178280), (8, 9780995), (10, 7824796), (14, 5589140), (20, 3912398), (28, 2794570), (35, 2235656), (40, 1956199), (43, 1819720), (56, 1397285), (67, 1167880), (70, 1117828), (86, 909860), (97, 806680), (134, 583940), (140, 558914), (172, 454930), (194, 403340), (215, 363944), (268, 291970), (280, 279457), (301, 259960), (335, 233576), (344, 227465), (388, 201670), (430, 181972), (469, 166840), (485, 161336), (536, 145985), (602, 129980), (670, 116788), (679, 115240), (776, 100835), (860, 90986), (938, 83420), (970, 80668), (1204, 64990), (1340, 58394), (1358, 57620), (1505, 51992), (1720, 45493), (1876, 41710), (1940, 40334), (2345, 33368), (2408, 32495), (2680, 29197), (2716, 28810), (2881, 27160), (3010, 25996), (3395, 23048), (3752, 20855), (3880, 20167), (4171, 18760), (4690, 16684), (5432, 14405), (5762, 13580), (6020, 12998), (6499, 12040), (6790, 11524), (8342, 9380)]