16645980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21341}}^1$

素因数の和:21366

約数の個数: 48

約数和(自身を含む): 50196384

約数和(自身を除く): 33550404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 21341, 42682, 64023, 85364, 106705, 128046, 213410, 256092, 277433, 320115, 426820, 554866, 640230, 832299, 1109732, 1280460, 1387165, 1664598, 2774330, 3329196, 4161495, 5548660, 8322990, 16645980]

約数ペア:

[(1, 16645980), (2, 8322990), (3, 5548660), (4, 4161495), (5, 3329196), (6, 2774330), (10, 1664598), (12, 1387165), (13, 1280460), (15, 1109732), (20, 832299), (26, 640230), (30, 554866), (39, 426820), (52, 320115), (60, 277433), (65, 256092), (78, 213410), (130, 128046), (156, 106705), (195, 85364), (260, 64023), (390, 42682), (780, 21341)]