20178453945

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1\times {\mathrm{2939}}^1$

素因数の和:3354

約数の個数: 64

約数和(自身を含む): 35171055360

約数和(自身を除く): 14992601415

約数列:

[1, 3, 5, 13, 15, 39, 65, 137, 195, 257, 411, 685, 771, 1285, 1781, 2055, 2939, 3341, 3855, 5343, 8817, 8905, 10023, 14695, 16705, 26715, 35209, 38207, 44085, 50115, 105627, 114621, 176045, 191035, 402643, 457717, 528135, 573105, 755323, 1207929, 1373151, 2013215, 2265969, 2288585, 3776615, 5234359, 6039645, 6865755, 9819199, 11329845, 15703077, 26171795, 29457597, 49095995, 78515385, 103479251, 147287985, 310437753, 517396255, 1345230263, 1552188765, 4035690789, 6726151315, 20178453945]

約数ペア:

[(1, 20178453945), (3, 6726151315), (5, 4035690789), (13, 1552188765), (15, 1345230263), (39, 517396255), (65, 310437753), (137, 147287985), (195, 103479251), (257, 78515385), (411, 49095995), (685, 29457597), (771, 26171795), (1285, 15703077), (1781, 11329845), (2055, 9819199), (2939, 6865755), (3341, 6039645), (3855, 5234359), (5343, 3776615), (8817, 2288585), (8905, 2265969), (10023, 2013215), (14695, 1373151), (16705, 1207929), (26715, 755323), (35209, 573105), (38207, 528135), (44085, 457717), (50115, 402643), (105627, 191035), (114621, 176045)]