17821240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 42768000

約数和(自身を除く): 24946760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 131, 152, 179, 190, 262, 358, 380, 524, 655, 716, 760, 895, 1048, 1310, 1432, 1790, 2489, 2620, 3401, 3580, 4978, 5240, 6802, 7160, 9956, 12445, 13604, 17005, 19912, 23449, 24890, 27208, 34010, 46898, 49780, 68020, 93796, 99560, 117245, 136040, 187592, 234490, 445531, 468980, 891062, 937960, 1782124, 2227655, 3564248, 4455310, 8910620, 17821240]

約数ペア:

[(1, 17821240), (2, 8910620), (4, 4455310), (5, 3564248), (8, 2227655), (10, 1782124), (19, 937960), (20, 891062), (38, 468980), (40, 445531), (76, 234490), (95, 187592), (131, 136040), (152, 117245), (179, 99560), (190, 93796), (262, 68020), (358, 49780), (380, 46898), (524, 34010), (655, 27208), (716, 24890), (760, 23449), (895, 19912), (1048, 17005), (1310, 13604), (1432, 12445), (1790, 9956), (2489, 7160), (2620, 6802), (3401, 5240), (3580, 4978)]