128503620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{101987}}^1$

素因数の和:102009

約数の個数: 72

約数和(自身を含む): 445483584

約数和(自身を除く): 316979964

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 101987, 203974, 305961, 407948, 509935, 611922, 713909, 917883, 1019870, 1223844, 1427818, 1529805, 1835766, 2039740, 2141727, 2855636, 3059610, 3569545, 3671532, 4283454, 4589415, 6119220, 6425181, 7139090, 8566908, 9178830, 10708635, 12850362, 14278180, 18357660, 21417270, 25700724, 32125905, 42834540, 64251810, 128503620]

約数ペア:

[(1, 128503620), (2, 64251810), (3, 42834540), (4, 32125905), (5, 25700724), (6, 21417270), (7, 18357660), (9, 14278180), (10, 12850362), (12, 10708635), (14, 9178830), (15, 8566908), (18, 7139090), (20, 6425181), (21, 6119220), (28, 4589415), (30, 4283454), (35, 3671532), (36, 3569545), (42, 3059610), (45, 2855636), (60, 2141727), (63, 2039740), (70, 1835766), (84, 1529805), (90, 1427818), (105, 1223844), (126, 1019870), (140, 917883), (180, 713909), (210, 611922), (252, 509935), (315, 407948), (420, 305961), (630, 203974), (1260, 101987)]