21545040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{8161}}^1$

素因数の和:8188

約数の個数: 80

約数和(自身を含む): 72870336

約数和(自身を除く): 51325296

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 8161, 16322, 24483, 32644, 40805, 48966, 65288, 81610, 89771, 97932, 122415, 130576, 163220, 179542, 195864, 244830, 269313, 326440, 359084, 391728, 448855, 489660, 538626, 652880, 718168, 897710, 979320, 1077252, 1346565, 1436336, 1795420, 1958640, 2154504, 2693130, 3590840, 4309008, 5386260, 7181680, 10772520, 21545040]

約数ペア:

[(1, 21545040), (2, 10772520), (3, 7181680), (4, 5386260), (5, 4309008), (6, 3590840), (8, 2693130), (10, 2154504), (11, 1958640), (12, 1795420), (15, 1436336), (16, 1346565), (20, 1077252), (22, 979320), (24, 897710), (30, 718168), (33, 652880), (40, 538626), (44, 489660), (48, 448855), (55, 391728), (60, 359084), (66, 326440), (80, 269313), (88, 244830), (110, 195864), (120, 179542), (132, 163220), (165, 130576), (176, 122415), (220, 97932), (240, 89771), (264, 81610), (330, 65288), (440, 48966), (528, 40805), (660, 32644), (880, 24483), (1320, 16322), (2640, 8161)]