356587020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1987}}^1$

素因数の和:2999

約数の個数: 72

約数和(自身を含む): 1083277104

約数和(自身を除く): 726690084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 997, 1987, 1994, 2991, 3974, 3988, 4985, 5961, 5982, 7948, 8973, 9935, 9970, 11922, 11964, 14955, 17883, 17946, 19870, 19940, 23844, 29805, 29910, 35766, 35892, 39740, 44865, 59610, 59820, 71532, 89415, 89730, 119220, 178830, 179460, 357660, 1981039, 3962078, 5943117, 7924156, 9905195, 11886234, 17829351, 19810390, 23772468, 29715585, 35658702, 39620780, 59431170, 71317404, 89146755, 118862340, 178293510, 356587020]

約数ペア:

[(1, 356587020), (2, 178293510), (3, 118862340), (4, 89146755), (5, 71317404), (6, 59431170), (9, 39620780), (10, 35658702), (12, 29715585), (15, 23772468), (18, 19810390), (20, 17829351), (30, 11886234), (36, 9905195), (45, 7924156), (60, 5943117), (90, 3962078), (180, 1981039), (997, 357660), (1987, 179460), (1994, 178830), (2991, 119220), (3974, 89730), (3988, 89415), (4985, 71532), (5961, 59820), (5982, 59610), (7948, 44865), (8973, 39740), (9935, 35892), (9970, 35766), (11922, 29910), (11964, 29805), (14955, 23844), (17883, 19940), (17946, 19870)]