642042940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{151}}^1\times {\mathrm{251}}^1$

素因数の和:440

約数の個数: 144

約数和(自身を含む): 1711729152

約数和(自身を除く): 1069686212

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 151, 154, 220, 242, 251, 302, 308, 385, 484, 502, 604, 605, 755, 770, 847, 1004, 1057, 1210, 1255, 1510, 1540, 1661, 1694, 1757, 2114, 2420, 2510, 2761, 3020, 3322, 3388, 3514, 4228, 4235, 5020, 5285, 5522, 6644, 7028, 8305, 8470, 8785, 10570, 11044, 11627, 13805, 16610, 16940, 17570, 18271, 19327, 21140, 23254, 27610, 30371, 33220, 35140, 36542, 37901, 38654, 46508, 55220, 58135, 60742, 73084, 75802, 77308, 91355, 96635, 116270, 121484, 127897, 151604, 151855, 182710, 189505, 193270, 212597, 232540, 255794, 265307, 303710, 365420, 379010, 386540, 416911, 425194, 511588, 530614, 607420, 639485, 758020, 833822, 850388, 1061228, 1062985, 1278970, 1326535, 1667644, 2084555, 2125970, 2557940, 2653070, 2918377, 4169110, 4251940, 4586021, 5306140, 5836754, 8338220, 9172042, 11673508, 14591885, 18344084, 22930105, 29183770, 32102147, 45860210, 58367540, 64204294, 91720420, 128408588, 160510735, 321021470, 642042940]

約数ペア:

[(1, 642042940), (2, 321021470), (4, 160510735), (5, 128408588), (7, 91720420), (10, 64204294), (11, 58367540), (14, 45860210), (20, 32102147), (22, 29183770), (28, 22930105), (35, 18344084), (44, 14591885), (55, 11673508), (70, 9172042), (77, 8338220), (110, 5836754), (121, 5306140), (140, 4586021), (151, 4251940), (154, 4169110), (220, 2918377), (242, 2653070), (251, 2557940), (302, 2125970), (308, 2084555), (385, 1667644), (484, 1326535), (502, 1278970), (604, 1062985), (605, 1061228), (755, 850388), (770, 833822), (847, 758020), (1004, 639485), (1057, 607420), (1210, 530614), (1255, 511588), (1510, 425194), (1540, 416911), (1661, 386540), (1694, 379010), (1757, 365420), (2114, 303710), (2420, 265307), (2510, 255794), (2761, 232540), (3020, 212597), (3322, 193270), (3388, 189505), (3514, 182710), (4228, 151855), (4235, 151604), (5020, 127897), (5285, 121484), (5522, 116270), (6644, 96635), (7028, 91355), (8305, 77308), (8470, 75802), (8785, 73084), (10570, 60742), (11044, 58135), (11627, 55220), (13805, 46508), (16610, 38654), (16940, 37901), (17570, 36542), (18271, 35140), (19327, 33220), (21140, 30371), (23254, 27610)]