16504540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:311

約数の個数: 72

約数和(自身を含む): 39659760

約数和(自身を除く): 23155220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 169, 190, 247, 257, 260, 338, 380, 494, 514, 676, 845, 988, 1028, 1235, 1285, 1690, 2470, 2570, 3211, 3341, 3380, 4883, 4940, 5140, 6422, 6682, 9766, 12844, 13364, 16055, 16705, 19532, 24415, 32110, 33410, 43433, 48830, 63479, 64220, 66820, 86866, 97660, 126958, 173732, 217165, 253916, 317395, 434330, 634790, 825227, 868660, 1269580, 1650454, 3300908, 4126135, 8252270, 16504540]

約数ペア:

[(1, 16504540), (2, 8252270), (4, 4126135), (5, 3300908), (10, 1650454), (13, 1269580), (19, 868660), (20, 825227), (26, 634790), (38, 434330), (52, 317395), (65, 253916), (76, 217165), (95, 173732), (130, 126958), (169, 97660), (190, 86866), (247, 66820), (257, 64220), (260, 63479), (338, 48830), (380, 43433), (494, 33410), (514, 32110), (676, 24415), (845, 19532), (988, 16705), (1028, 16055), (1235, 13364), (1285, 12844), (1690, 9766), (2470, 6682), (2570, 6422), (3211, 5140), (3341, 4940), (3380, 4883)]