28616565

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 51609600

約数和(自身を除く): 22993035

約数列:

[1, 3, 5, 15, 19, 31, 41, 57, 79, 93, 95, 123, 155, 205, 237, 285, 395, 465, 589, 615, 779, 1185, 1271, 1501, 1767, 2337, 2449, 2945, 3239, 3813, 3895, 4503, 6355, 7347, 7505, 8835, 9717, 11685, 12245, 16195, 19065, 22515, 24149, 36735, 46531, 48585, 61541, 72447, 100409, 120745, 139593, 184623, 232655, 301227, 307705, 362235, 502045, 697965, 923115, 1506135, 1907771, 5723313, 9538855, 28616565]

約数ペア:

[(1, 28616565), (3, 9538855), (5, 5723313), (15, 1907771), (19, 1506135), (31, 923115), (41, 697965), (57, 502045), (79, 362235), (93, 307705), (95, 301227), (123, 232655), (155, 184623), (205, 139593), (237, 120745), (285, 100409), (395, 72447), (465, 61541), (589, 48585), (615, 46531), (779, 36735), (1185, 24149), (1271, 22515), (1501, 19065), (1767, 16195), (2337, 12245), (2449, 11685), (2945, 9717), (3239, 8835), (3813, 7505), (3895, 7347), (4503, 6355)]