71878940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:259

約数の個数: 96

約数和(自身を含む): 179128320

約数和(自身を除く): 107249380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 79, 97, 134, 140, 158, 194, 268, 316, 335, 388, 395, 469, 485, 553, 670, 679, 790, 938, 970, 1106, 1340, 1358, 1580, 1876, 1940, 2212, 2345, 2716, 2765, 3395, 4690, 5293, 5530, 6499, 6790, 7663, 9380, 10586, 11060, 12998, 13580, 15326, 21172, 25996, 26465, 30652, 32495, 37051, 38315, 45493, 52930, 53641, 64990, 74102, 76630, 90986, 105860, 107282, 129980, 148204, 153260, 181972, 185255, 214564, 227465, 268205, 370510, 454930, 513421, 536410, 741020, 909860, 1026842, 1072820, 2053684, 2567105, 3593947, 5134210, 7187894, 10268420, 14375788, 17969735, 35939470, 71878940]

約数ペア:

[(1, 71878940), (2, 35939470), (4, 17969735), (5, 14375788), (7, 10268420), (10, 7187894), (14, 5134210), (20, 3593947), (28, 2567105), (35, 2053684), (67, 1072820), (70, 1026842), (79, 909860), (97, 741020), (134, 536410), (140, 513421), (158, 454930), (194, 370510), (268, 268205), (316, 227465), (335, 214564), (388, 185255), (395, 181972), (469, 153260), (485, 148204), (553, 129980), (670, 107282), (679, 105860), (790, 90986), (938, 76630), (970, 74102), (1106, 64990), (1340, 53641), (1358, 52930), (1580, 45493), (1876, 38315), (1940, 37051), (2212, 32495), (2345, 30652), (2716, 26465), (2765, 25996), (3395, 21172), (4690, 15326), (5293, 13580), (5530, 12998), (6499, 11060), (6790, 10586), (7663, 9380)]