81897270

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:390

約数の個数: 128

約数和(自身を含む): 244823040

約数和(自身を除く): 162925770

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 131, 182, 195, 210, 229, 262, 273, 390, 393, 455, 458, 546, 655, 687, 786, 910, 917, 1145, 1310, 1365, 1374, 1603, 1703, 1834, 1965, 2290, 2730, 2751, 2977, 3206, 3406, 3435, 3930, 4585, 4809, 5109, 5502, 5954, 6870, 8015, 8515, 8931, 9170, 9618, 10218, 11921, 13755, 14885, 16030, 17030, 17862, 20839, 23842, 24045, 25545, 27510, 29770, 29999, 35763, 41678, 44655, 48090, 51090, 59605, 59998, 62517, 71526, 89310, 89997, 104195, 119210, 125034, 149995, 178815, 179994, 208390, 209993, 299990, 312585, 357630, 389987, 419986, 449985, 625170, 629979, 779974, 899970, 1049965, 1169961, 1259958, 1949935, 2099930, 2339922, 2729909, 3149895, 3899870, 5459818, 5849805, 6299790, 8189727, 11699610, 13649545, 16379454, 27299090, 40948635, 81897270]

約数ペア:

[(1, 81897270), (2, 40948635), (3, 27299090), (5, 16379454), (6, 13649545), (7, 11699610), (10, 8189727), (13, 6299790), (14, 5849805), (15, 5459818), (21, 3899870), (26, 3149895), (30, 2729909), (35, 2339922), (39, 2099930), (42, 1949935), (65, 1259958), (70, 1169961), (78, 1049965), (91, 899970), (105, 779974), (130, 629979), (131, 625170), (182, 449985), (195, 419986), (210, 389987), (229, 357630), (262, 312585), (273, 299990), (390, 209993), (393, 208390), (455, 179994), (458, 178815), (546, 149995), (655, 125034), (687, 119210), (786, 104195), (910, 89997), (917, 89310), (1145, 71526), (1310, 62517), (1365, 59998), (1374, 59605), (1603, 51090), (1703, 48090), (1834, 44655), (1965, 41678), (2290, 35763), (2730, 29999), (2751, 29770), (2977, 27510), (3206, 25545), (3406, 24045), (3435, 23842), (3930, 20839), (4585, 17862), (4809, 17030), (5109, 16030), (5502, 14885), (5954, 13755), (6870, 11921), (8015, 10218), (8515, 9618), (8931, 9170)]