421206940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{953}}^1$

素因数の和:1028

約数の個数: 144

約数和(自身を含む): 1151073504

約数和(自身を除く): 729866564

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 41, 44, 49, 55, 70, 77, 82, 98, 110, 140, 154, 164, 196, 205, 220, 245, 287, 308, 385, 410, 451, 490, 539, 574, 770, 820, 902, 953, 980, 1078, 1148, 1435, 1540, 1804, 1906, 2009, 2156, 2255, 2695, 2870, 3157, 3812, 4018, 4510, 4765, 5390, 5740, 6314, 6671, 8036, 9020, 9530, 10045, 10483, 10780, 12628, 13342, 15785, 19060, 20090, 20966, 22099, 26684, 31570, 33355, 39073, 40180, 41932, 44198, 46697, 52415, 63140, 66710, 73381, 78146, 88396, 93394, 104830, 110495, 133420, 146762, 156292, 186788, 195365, 209660, 220990, 233485, 273511, 293524, 366905, 390730, 429803, 441980, 466970, 513667, 547022, 733810, 781460, 859606, 933940, 1027334, 1094044, 1367555, 1467620, 1719212, 1914577, 2054668, 2149015, 2568335, 2735110, 3008621, 3829154, 4298030, 5136670, 5470220, 6017242, 7658308, 8596060, 9572885, 10273340, 12034484, 15043105, 19145770, 21060347, 30086210, 38291540, 42120694, 60172420, 84241388, 105301735, 210603470, 421206940]

約数ペア:

[(1, 421206940), (2, 210603470), (4, 105301735), (5, 84241388), (7, 60172420), (10, 42120694), (11, 38291540), (14, 30086210), (20, 21060347), (22, 19145770), (28, 15043105), (35, 12034484), (41, 10273340), (44, 9572885), (49, 8596060), (55, 7658308), (70, 6017242), (77, 5470220), (82, 5136670), (98, 4298030), (110, 3829154), (140, 3008621), (154, 2735110), (164, 2568335), (196, 2149015), (205, 2054668), (220, 1914577), (245, 1719212), (287, 1467620), (308, 1367555), (385, 1094044), (410, 1027334), (451, 933940), (490, 859606), (539, 781460), (574, 733810), (770, 547022), (820, 513667), (902, 466970), (953, 441980), (980, 429803), (1078, 390730), (1148, 366905), (1435, 293524), (1540, 273511), (1804, 233485), (1906, 220990), (2009, 209660), (2156, 195365), (2255, 186788), (2695, 156292), (2870, 146762), (3157, 133420), (3812, 110495), (4018, 104830), (4510, 93394), (4765, 88396), (5390, 78146), (5740, 73381), (6314, 66710), (6671, 63140), (8036, 52415), (9020, 46697), (9530, 44198), (10045, 41932), (10483, 40180), (10780, 39073), (12628, 33355), (13342, 31570), (15785, 26684), (19060, 22099), (20090, 20966)]