20551920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4507}}^1$

素因数の和:4542

約数の個数: 80

約数和(自身を含む): 67079040

約数和(自身を除く): 46527120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4507, 4560, 9014, 13521, 18028, 22535, 27042, 36056, 45070, 54084, 67605, 72112, 85633, 90140, 108168, 135210, 171266, 180280, 216336, 256899, 270420, 342532, 360560, 428165, 513798, 540840, 685064, 856330, 1027596, 1081680, 1284495, 1370128, 1712660, 2055192, 2568990, 3425320, 4110384, 5137980, 6850640, 10275960, 20551920]

約数ペア:

[(1, 20551920), (2, 10275960), (3, 6850640), (4, 5137980), (5, 4110384), (6, 3425320), (8, 2568990), (10, 2055192), (12, 1712660), (15, 1370128), (16, 1284495), (19, 1081680), (20, 1027596), (24, 856330), (30, 685064), (38, 540840), (40, 513798), (48, 428165), (57, 360560), (60, 342532), (76, 270420), (80, 256899), (95, 216336), (114, 180280), (120, 171266), (152, 135210), (190, 108168), (228, 90140), (240, 85633), (285, 72112), (304, 67605), (380, 54084), (456, 45070), (570, 36056), (760, 27042), (912, 22535), (1140, 18028), (1520, 13521), (2280, 9014), (4507, 4560)]