20378280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13063}}^1$

素因数の和:13090

約数の個数: 64

約数和(自身を含む): 65842560

約数和(自身を除く): 45464280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13063, 26126, 39189, 52252, 65315, 78378, 104504, 130630, 156756, 169819, 195945, 261260, 313512, 339638, 391890, 509457, 522520, 679276, 783780, 849095, 1018914, 1358552, 1567560, 1698190, 2037828, 2547285, 3396380, 4075656, 5094570, 6792760, 10189140, 20378280]

約数ペア:

[(1, 20378280), (2, 10189140), (3, 6792760), (4, 5094570), (5, 4075656), (6, 3396380), (8, 2547285), (10, 2037828), (12, 1698190), (13, 1567560), (15, 1358552), (20, 1018914), (24, 849095), (26, 783780), (30, 679276), (39, 522520), (40, 509457), (52, 391890), (60, 339638), (65, 313512), (78, 261260), (104, 195945), (120, 169819), (130, 156756), (156, 130630), (195, 104504), (260, 78378), (312, 65315), (390, 52252), (520, 39189), (780, 26126), (1560, 13063)]