664846480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23021}}^1$

素因数の和:23072

約数の個数: 60

約数和(自身を含む): 1631477052

約数和(自身を除く): 966630572

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 1444, 1520, 1805, 2888, 3610, 5776, 7220, 14440, 23021, 28880, 46042, 92084, 115105, 184168, 230210, 368336, 437399, 460420, 874798, 920840, 1749596, 1841680, 2186995, 3499192, 4373990, 6998384, 8310581, 8747980, 16621162, 17495960, 33242324, 34991920, 41552905, 66484648, 83105810, 132969296, 166211620, 332423240, 664846480]

約数ペア:

[(1, 664846480), (2, 332423240), (4, 166211620), (5, 132969296), (8, 83105810), (10, 66484648), (16, 41552905), (19, 34991920), (20, 33242324), (38, 17495960), (40, 16621162), (76, 8747980), (80, 8310581), (95, 6998384), (152, 4373990), (190, 3499192), (304, 2186995), (361, 1841680), (380, 1749596), (722, 920840), (760, 874798), (1444, 460420), (1520, 437399), (1805, 368336), (2888, 230210), (3610, 184168), (5776, 115105), (7220, 92084), (14440, 46042), (23021, 28880)]