18159800

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:177

約数の個数: 96

約数和(自身を含む): 45532800

約数和(自身を除く): 27373000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 31, 40, 50, 58, 62, 100, 101, 116, 124, 145, 155, 200, 202, 232, 248, 290, 310, 404, 505, 580, 620, 725, 775, 808, 899, 1010, 1160, 1240, 1450, 1550, 1798, 2020, 2525, 2900, 2929, 3100, 3131, 3596, 4040, 4495, 5050, 5800, 5858, 6200, 6262, 7192, 8990, 10100, 11716, 12524, 14645, 15655, 17980, 20200, 22475, 23432, 25048, 29290, 31310, 35960, 44950, 58580, 62620, 73225, 78275, 89900, 90799, 117160, 125240, 146450, 156550, 179800, 181598, 292900, 313100, 363196, 453995, 585800, 626200, 726392, 907990, 1815980, 2269975, 3631960, 4539950, 9079900, 18159800]

約数ペア:

[(1, 18159800), (2, 9079900), (4, 4539950), (5, 3631960), (8, 2269975), (10, 1815980), (20, 907990), (25, 726392), (29, 626200), (31, 585800), (40, 453995), (50, 363196), (58, 313100), (62, 292900), (100, 181598), (101, 179800), (116, 156550), (124, 146450), (145, 125240), (155, 117160), (200, 90799), (202, 89900), (232, 78275), (248, 73225), (290, 62620), (310, 58580), (404, 44950), (505, 35960), (580, 31310), (620, 29290), (725, 25048), (775, 23432), (808, 22475), (899, 20200), (1010, 17980), (1160, 15655), (1240, 14645), (1450, 12524), (1550, 11716), (1798, 10100), (2020, 8990), (2525, 7192), (2900, 6262), (2929, 6200), (3100, 5858), (3131, 5800), (3596, 5050), (4040, 4495)]