638637538

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:440

約数の個数: 128

約数和(自身を含む): 1371064320

約数和(自身を除く): 732426782

約数列:

[1, 2, 7, 11, 14, 17, 19, 22, 34, 37, 38, 74, 77, 119, 133, 154, 187, 209, 238, 259, 266, 323, 347, 374, 407, 418, 518, 629, 646, 694, 703, 814, 1258, 1309, 1406, 1463, 2261, 2429, 2618, 2849, 2926, 3553, 3817, 4403, 4522, 4858, 4921, 5698, 5899, 6593, 6919, 7106, 7634, 7733, 8806, 9842, 11798, 11951, 12839, 13186, 13838, 15466, 23902, 24871, 25678, 26719, 41293, 46151, 48433, 49742, 53438, 54131, 64889, 72523, 82586, 83657, 89873, 92302, 96866, 108262, 112081, 129778, 131461, 141229, 145046, 167314, 179746, 218263, 224162, 243941, 262922, 282458, 436526, 454223, 487882, 507661, 784567, 908446, 920227, 988603, 1015322, 1232891, 1527841, 1569134, 1707587, 1840454, 1977206, 2400893, 2465782, 2683351, 3055682, 3415174, 4146997, 4801786, 5366702, 8293994, 8630237, 16806251, 17260474, 18783457, 29028979, 33612502, 37566914, 45616967, 58057958, 91233934, 319318769, 638637538]

約数ペア:

[(1, 638637538), (2, 319318769), (7, 91233934), (11, 58057958), (14, 45616967), (17, 37566914), (19, 33612502), (22, 29028979), (34, 18783457), (37, 17260474), (38, 16806251), (74, 8630237), (77, 8293994), (119, 5366702), (133, 4801786), (154, 4146997), (187, 3415174), (209, 3055682), (238, 2683351), (259, 2465782), (266, 2400893), (323, 1977206), (347, 1840454), (374, 1707587), (407, 1569134), (418, 1527841), (518, 1232891), (629, 1015322), (646, 988603), (694, 920227), (703, 908446), (814, 784567), (1258, 507661), (1309, 487882), (1406, 454223), (1463, 436526), (2261, 282458), (2429, 262922), (2618, 243941), (2849, 224162), (2926, 218263), (3553, 179746), (3817, 167314), (4403, 145046), (4522, 141229), (4858, 131461), (4921, 129778), (5698, 112081), (5899, 108262), (6593, 96866), (6919, 92302), (7106, 89873), (7634, 83657), (7733, 82586), (8806, 72523), (9842, 64889), (11798, 54131), (11951, 53438), (12839, 49742), (13186, 48433), (13838, 46151), (15466, 41293), (23902, 26719), (24871, 25678)]