16405480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4507}}^1$

素因数の和:4538

約数の個数: 64

約数和(自身を含む): 45440640

約数和(自身を除く): 29035160

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 4507, 9014, 18028, 22535, 31549, 36056, 45070, 58591, 63098, 90140, 117182, 126196, 157745, 180280, 234364, 252392, 292955, 315490, 410137, 468728, 585910, 630980, 820274, 1171820, 1261960, 1640548, 2050685, 2343640, 3281096, 4101370, 8202740, 16405480]

約数ペア:

[(1, 16405480), (2, 8202740), (4, 4101370), (5, 3281096), (7, 2343640), (8, 2050685), (10, 1640548), (13, 1261960), (14, 1171820), (20, 820274), (26, 630980), (28, 585910), (35, 468728), (40, 410137), (52, 315490), (56, 292955), (65, 252392), (70, 234364), (91, 180280), (104, 157745), (130, 126196), (140, 117182), (182, 90140), (260, 63098), (280, 58591), (364, 45070), (455, 36056), (520, 31549), (728, 22535), (910, 18028), (1820, 9014), (3640, 4507)]