20803125315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1171}}^1\times {\mathrm{2383}}^1$

素因数の和:3640

約数の個数: 64

約数和(自身を含む): 38624919552

約数和(自身を除く): 17821794237

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1171, 1491, 2383, 2485, 3513, 5855, 7149, 7455, 8197, 11915, 16681, 17565, 24591, 35745, 40985, 50043, 83141, 83405, 122955, 169193, 249423, 250215, 415705, 507579, 581987, 845965, 1184351, 1247115, 1745961, 2537895, 2790493, 2909935, 3553053, 5921755, 8371479, 8729805, 13952465, 17765265, 19533451, 41857395, 58600353, 97667255, 198125003, 293001765, 594375009, 990625015, 1386875021, 2971875045, 4160625063, 6934375105, 20803125315]

約数ペア:

[(1, 20803125315), (3, 6934375105), (5, 4160625063), (7, 2971875045), (15, 1386875021), (21, 990625015), (35, 594375009), (71, 293001765), (105, 198125003), (213, 97667255), (355, 58600353), (497, 41857395), (1065, 19533451), (1171, 17765265), (1491, 13952465), (2383, 8729805), (2485, 8371479), (3513, 5921755), (5855, 3553053), (7149, 2909935), (7455, 2790493), (8197, 2537895), (11915, 1745961), (16681, 1247115), (17565, 1184351), (24591, 845965), (35745, 581987), (40985, 507579), (50043, 415705), (83141, 250215), (83405, 249423), (122955, 169193)]