28687245

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 53084160

約数和(自身を除く): 24396915

約数列:

[1, 3, 5, 15, 17, 19, 31, 51, 57, 85, 93, 95, 155, 191, 255, 285, 323, 465, 527, 573, 589, 955, 969, 1581, 1615, 1767, 2635, 2865, 2945, 3247, 3629, 4845, 5921, 7905, 8835, 9741, 10013, 10887, 16235, 17763, 18145, 29605, 30039, 48705, 50065, 54435, 61693, 88815, 100657, 112499, 150195, 185079, 301971, 308465, 337497, 503285, 562495, 925395, 1509855, 1687485, 1912483, 5737449, 9562415, 28687245]

約数ペア:

[(1, 28687245), (3, 9562415), (5, 5737449), (15, 1912483), (17, 1687485), (19, 1509855), (31, 925395), (51, 562495), (57, 503285), (85, 337497), (93, 308465), (95, 301971), (155, 185079), (191, 150195), (255, 112499), (285, 100657), (323, 88815), (465, 61693), (527, 54435), (573, 50065), (589, 48705), (955, 30039), (969, 29605), (1581, 18145), (1615, 17763), (1767, 16235), (2635, 10887), (2865, 10013), (2945, 9741), (3247, 8835), (3629, 7905), (4845, 5921)]