643950

素因数分解:

$2^1\times 3^5\times 5^2\times {\mathrm{53}}^1$

素因数の和:80

約数の個数: 72

約数和(自身を含む): 1828008

約数和(自身を除く): 1184058

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 53, 54, 75, 81, 90, 106, 135, 150, 159, 162, 225, 243, 265, 270, 318, 405, 450, 477, 486, 530, 675, 795, 810, 954, 1215, 1325, 1350, 1431, 1590, 2025, 2385, 2430, 2650, 2862, 3975, 4050, 4293, 4770, 6075, 7155, 7950, 8586, 11925, 12150, 12879, 14310, 21465, 23850, 25758, 35775, 42930, 64395, 71550, 107325, 128790, 214650, 321975, 643950]

約数ペア:

[(1, 643950), (2, 321975), (3, 214650), (5, 128790), (6, 107325), (9, 71550), (10, 64395), (15, 42930), (18, 35775), (25, 25758), (27, 23850), (30, 21465), (45, 14310), (50, 12879), (53, 12150), (54, 11925), (75, 8586), (81, 7950), (90, 7155), (106, 6075), (135, 4770), (150, 4293), (159, 4050), (162, 3975), (225, 2862), (243, 2650), (265, 2430), (270, 2385), (318, 2025), (405, 1590), (450, 1431), (477, 1350), (486, 1325), (530, 1215), (675, 954), (795, 810)]