21167222840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{898439}}^1$

素因数の和:898500

約数の個数: 64

約数和(自身を含む): 51750144000

約数和(自身を除く): 30582921160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 1178, 1240, 2356, 2945, 4712, 5890, 11780, 23560, 898439, 1796878, 3593756, 4492195, 7187512, 8984390, 17070341, 17968780, 27851609, 34140682, 35937560, 55703218, 68281364, 85351705, 111406436, 136562728, 139258045, 170703410, 222812872, 278516090, 341406820, 529180571, 557032180, 682813640, 1058361142, 1114064360, 2116722284, 2645902855, 4233444568, 5291805710, 10583611420, 21167222840]

約数ペア:

[(1, 21167222840), (2, 10583611420), (4, 5291805710), (5, 4233444568), (8, 2645902855), (10, 2116722284), (19, 1114064360), (20, 1058361142), (31, 682813640), (38, 557032180), (40, 529180571), (62, 341406820), (76, 278516090), (95, 222812872), (124, 170703410), (152, 139258045), (155, 136562728), (190, 111406436), (248, 85351705), (310, 68281364), (380, 55703218), (589, 35937560), (620, 34140682), (760, 27851609), (1178, 17968780), (1240, 17070341), (2356, 8984390), (2945, 7187512), (4712, 4492195), (5890, 3593756), (11780, 1796878), (23560, 898439)]