128458890

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{29129}}^1$

素因数の和:29156

約数の個数: 72

約数和(自身を含む): 388535940

約数和(自身を除く): 260077050

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 29129, 58258, 87387, 145645, 174774, 203903, 262161, 291290, 407806, 436935, 524322, 611709, 873870, 1019515, 1223418, 1310805, 1427321, 1835127, 2039030, 2621610, 2854642, 3058545, 3670254, 4281963, 6117090, 7136605, 8563926, 9175635, 12845889, 14273210, 18351270, 21409815, 25691778, 42819630, 64229445, 128458890]

約数ペア:

[(1, 128458890), (2, 64229445), (3, 42819630), (5, 25691778), (6, 21409815), (7, 18351270), (9, 14273210), (10, 12845889), (14, 9175635), (15, 8563926), (18, 7136605), (21, 6117090), (30, 4281963), (35, 3670254), (42, 3058545), (45, 2854642), (49, 2621610), (63, 2039030), (70, 1835127), (90, 1427321), (98, 1310805), (105, 1223418), (126, 1019515), (147, 873870), (210, 611709), (245, 524322), (294, 436935), (315, 407806), (441, 291290), (490, 262161), (630, 203903), (735, 174774), (882, 145645), (1470, 87387), (2205, 58258), (4410, 29129)]