20802990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1301}}^1$

素因数の和:1365

約数の個数: 64

約数和(自身を含む): 55121472

約数和(自身を除く): 34318482

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 41, 65, 78, 82, 123, 130, 195, 205, 246, 390, 410, 533, 615, 1066, 1230, 1301, 1599, 2602, 2665, 3198, 3903, 5330, 6505, 7806, 7995, 13010, 15990, 16913, 19515, 33826, 39030, 50739, 53341, 84565, 101478, 106682, 160023, 169130, 253695, 266705, 320046, 507390, 533410, 693433, 800115, 1386866, 1600230, 2080299, 3467165, 4160598, 6934330, 10401495, 20802990]

約数ペア:

[(1, 20802990), (2, 10401495), (3, 6934330), (5, 4160598), (6, 3467165), (10, 2080299), (13, 1600230), (15, 1386866), (26, 800115), (30, 693433), (39, 533410), (41, 507390), (65, 320046), (78, 266705), (82, 253695), (123, 169130), (130, 160023), (195, 106682), (205, 101478), (246, 84565), (390, 53341), (410, 50739), (533, 39030), (615, 33826), (1066, 19515), (1230, 16913), (1301, 15990), (1599, 13010), (2602, 7995), (2665, 7806), (3198, 6505), (3903, 5330)]