28665180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{977}}^1$

素因数の和:1155

約数の個数: 72

約数和(自身を含む): 87574032

約数和(自身を除く): 58908852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 326, 489, 652, 815, 977, 978, 1467, 1630, 1954, 1956, 2445, 2931, 2934, 3260, 3908, 4885, 4890, 5862, 5868, 7335, 8793, 9770, 9780, 11724, 14655, 14670, 17586, 19540, 29310, 29340, 35172, 43965, 58620, 87930, 159251, 175860, 318502, 477753, 637004, 796255, 955506, 1433259, 1592510, 1911012, 2388765, 2866518, 3185020, 4777530, 5733036, 7166295, 9555060, 14332590, 28665180]

約数ペア:

[(1, 28665180), (2, 14332590), (3, 9555060), (4, 7166295), (5, 5733036), (6, 4777530), (9, 3185020), (10, 2866518), (12, 2388765), (15, 1911012), (18, 1592510), (20, 1433259), (30, 955506), (36, 796255), (45, 637004), (60, 477753), (90, 318502), (163, 175860), (180, 159251), (326, 87930), (489, 58620), (652, 43965), (815, 35172), (977, 29340), (978, 29310), (1467, 19540), (1630, 17586), (1954, 14670), (1956, 14655), (2445, 11724), (2931, 9780), (2934, 9770), (3260, 8793), (3908, 7335), (4885, 5868), (4890, 5862)]